Home / 472,768.20-709,152.30-140,344.20

Finding the Fourth Proportional to 472,768.20, 709,152.30 and 140,344.20

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Solution

The fourth proportional to 472,768.20, 709,152.30 and 140,344.20 is: 210,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,768.20 : 709,152.30 = 140,344.20 : x
  2. Step 2: Convert to fraction form
    472,768.20/709,152.30 = 140,344.20/x
  3. Step 3: Cross multiply
    472,768.20x = 709,152.30 × 140,344.20
  4. Step 4: Simplify right side
    472,768.20x = 99,525,412,221.66
  5. Step 5: Solve for x
    x = 99,525,412,221.66/472,768.20
  6. Step 6: Final answer
    x = 210,516.30

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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.