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Finding the Fourth Proportional to 373,449.67, 515,358.11 and 212,304.76

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Solution

The fourth proportional to 373,449.67, 515,358.11 and 212,304.76 is: 292,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,449.67 : 515,358.11 = 212,304.76 : x
  2. Step 2: Convert to fraction form
    373,449.67/515,358.11 = 212,304.76/x
  3. Step 3: Cross multiply
    373,449.67x = 515,358.11 × 212,304.76
  4. Step 4: Simplify right side
    373,449.67x = 109,412,979,099.97
  5. Step 5: Solve for x
    x = 109,412,979,099.97/373,449.67
  6. Step 6: Final answer
    x = 292,979.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.