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Finding the Fourth Proportional to 442,326.75, 663,490.14 and 109,902.75

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Solution

The fourth proportional to 442,326.75, 663,490.14 and 109,902.75 is: 164,854.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,326.75 : 663,490.14 = 109,902.75 : x
  2. Step 2: Convert to fraction form
    442,326.75/663,490.14 = 109,902.75/x
  3. Step 3: Cross multiply
    442,326.75x = 663,490.14 × 109,902.75
  4. Step 4: Simplify right side
    442,326.75x = 72,919,390,983.89
  5. Step 5: Solve for x
    x = 72,919,390,983.89/442,326.75
  6. Step 6: Final answer
    x = 164,854.13

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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.