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Finding the Fourth Proportional to 503,107.92, 754,661.88 and 129,130.92

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Solution

The fourth proportional to 503,107.92, 754,661.88 and 129,130.92 is: 193,696.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,107.92 : 754,661.88 = 129,130.92 : x
  2. Step 2: Convert to fraction form
    503,107.92/754,661.88 = 129,130.92/x
  3. Step 3: Cross multiply
    503,107.92x = 754,661.88 × 129,130.92
  4. Step 4: Simplify right side
    503,107.92x = 97,450,182,853.33
  5. Step 5: Solve for x
    x = 97,450,182,853.33/503,107.92
  6. Step 6: Final answer
    x = 193,696.38

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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.