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Finding the Fourth Proportional to 502,101.92, 753,152.40 and 128,124.88

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Solution

The fourth proportional to 502,101.92, 753,152.40 and 128,124.88 is: 192,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,101.92 : 753,152.40 = 128,124.88 : x
  2. Step 2: Convert to fraction form
    502,101.92/753,152.40 = 128,124.88/x
  3. Step 3: Cross multiply
    502,101.92x = 753,152.40 × 128,124.88
  4. Step 4: Simplify right side
    502,101.92x = 96,497,560,871.71
  5. Step 5: Solve for x
    x = 96,497,560,871.71/502,101.92
  6. Step 6: Final answer
    x = 192,187.20

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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.