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Finding the Fourth Proportional to 457,699.60, 631,645.43 and 253,737.55

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Solution

The fourth proportional to 457,699.60, 631,645.43 and 253,737.55 is: 350,168.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,699.60 : 631,645.43 = 253,737.55 : x
  2. Step 2: Convert to fraction form
    457,699.60/631,645.43 = 253,737.55/x
  3. Step 3: Cross multiply
    457,699.60x = 631,645.43 × 253,737.55
  4. Step 4: Simplify right side
    457,699.60x = 160,272,163,397.77
  5. Step 5: Solve for x
    x = 160,272,163,397.77/457,699.60
  6. Step 6: Final answer
    x = 350,168.89

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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.