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Finding the Fourth Proportional to 314,852.70, 472,279.05 and 127,998.30

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Solution

The fourth proportional to 314,852.70, 472,279.05 and 127,998.30 is: 191,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,852.70 : 472,279.05 = 127,998.30 : x
  2. Step 2: Convert to fraction form
    314,852.70/472,279.05 = 127,998.30/x
  3. Step 3: Cross multiply
    314,852.70x = 472,279.05 × 127,998.30
  4. Step 4: Simplify right side
    314,852.70x = 60,450,915,525.62
  5. Step 5: Solve for x
    x = 60,450,915,525.62/314,852.70
  6. Step 6: Final answer
    x = 191,997.45

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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.