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Finding the Fourth Proportional to 442,532.32, 610,791.30 and 281,355.89

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Solution

The fourth proportional to 442,532.32, 610,791.30 and 281,355.89 is: 388,332.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,532.32 : 610,791.30 = 281,355.89 : x
  2. Step 2: Convert to fraction form
    442,532.32/610,791.30 = 281,355.89/x
  3. Step 3: Cross multiply
    442,532.32x = 610,791.30 × 281,355.89
  4. Step 4: Simplify right side
    442,532.32x = 171,849,726,761.80
  5. Step 5: Solve for x
    x = 171,849,726,761.80/442,532.32
  6. Step 6: Final answer
    x = 388,332.60

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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.