Home / 753,131.80-1,129,697.70-192,166.30

Finding the Fourth Proportional to 753,131.80, 1,129,697.70 and 192,166.30

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Solution

The fourth proportional to 753,131.80, 1,129,697.70 and 192,166.30 is: 288,249.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,131.80 : 1,129,697.70 = 192,166.30 : x
  2. Step 2: Convert to fraction form
    753,131.80/1,129,697.70 = 192,166.30/x
  3. Step 3: Cross multiply
    753,131.80x = 1,129,697.70 × 192,166.30
  4. Step 4: Simplify right side
    753,131.80x = 217,089,827,127.51
  5. Step 5: Solve for x
    x = 217,089,827,127.51/753,131.80
  6. Step 6: Final answer
    x = 288,249.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.