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Finding the Fourth Proportional to 261,957.01, 361,343.15 and 159,935.89

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Solution

The fourth proportional to 261,957.01, 361,343.15 and 159,935.89 is: 220,615.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,957.01 : 361,343.15 = 159,935.89 : x
  2. Step 2: Convert to fraction form
    261,957.01/361,343.15 = 159,935.89/x
  3. Step 3: Cross multiply
    261,957.01x = 361,343.15 × 159,935.89
  4. Step 4: Simplify right side
    261,957.01x = 57,791,737,490.97
  5. Step 5: Solve for x
    x = 57,791,737,490.97/261,957.01
  6. Step 6: Final answer
    x = 220,615.35

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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.