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Finding the Fourth Proportional to 658,116, 987,174.15 and 237,391.83

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Solution

The fourth proportional to 658,116, 987,174.15 and 237,391.83 is: 356,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,116 : 987,174.15 = 237,391.83 : x
  2. Step 2: Convert to fraction form
    658,116/987,174.15 = 237,391.83/x
  3. Step 3: Cross multiply
    658,116x = 987,174.15 × 237,391.83
  4. Step 4: Simplify right side
    658,116x = 234,347,077,997.20
  5. Step 5: Solve for x
    x = 234,347,077,997.20/658,116
  6. Step 6: Final answer
    x = 356,087.80

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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.