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Finding the Fourth Proportional to 658,330.31, 987,495.87 and 159,694.31

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Solution

The fourth proportional to 658,330.31, 987,495.87 and 159,694.31 is: 239,541.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,330.31 : 987,495.87 = 159,694.31 : x
  2. Step 2: Convert to fraction form
    658,330.31/987,495.87 = 159,694.31/x
  3. Step 3: Cross multiply
    658,330.31x = 987,495.87 × 159,694.31
  4. Step 4: Simplify right side
    658,330.31x = 157,697,474,655.09
  5. Step 5: Solve for x
    x = 157,697,474,655.09/658,330.31
  6. Step 6: Final answer
    x = 239,541.57

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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.