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Finding the Fourth Proportional to 296,869.45, 445,304.51 and 72,229.89

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Solution

The fourth proportional to 296,869.45, 445,304.51 and 72,229.89 is: 108,344.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,869.45 : 445,304.51 = 72,229.89 : x
  2. Step 2: Convert to fraction form
    296,869.45/445,304.51 = 72,229.89/x
  3. Step 3: Cross multiply
    296,869.45x = 445,304.51 × 72,229.89
  4. Step 4: Simplify right side
    296,869.45x = 32,164,295,773.80
  5. Step 5: Solve for x
    x = 32,164,295,773.80/296,869.45
  6. Step 6: Final answer
    x = 108,344.92

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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.