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Finding the Fourth Proportional to 503,212.92, 754,819.38 and 129,236.28

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Solution

The fourth proportional to 503,212.92, 754,819.38 and 129,236.28 is: 193,854.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,212.92 : 754,819.38 = 129,236.28 : x
  2. Step 2: Convert to fraction form
    503,212.92/754,819.38 = 129,236.28/x
  3. Step 3: Cross multiply
    503,212.92x = 754,819.38 × 129,236.28
  4. Step 4: Simplify right side
    503,212.92x = 97,550,048,743.11
  5. Step 5: Solve for x
    x = 97,550,048,743.11/503,212.92
  6. Step 6: Final answer
    x = 193,854.42

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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.