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Finding the Fourth Proportional to 259,396.97, 386,516.88 and 231,099.62

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Solution

The fourth proportional to 259,396.97, 386,516.88 and 231,099.62 is: 344,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,396.97 : 386,516.88 = 231,099.62 : x
  2. Step 2: Convert to fraction form
    259,396.97/386,516.88 = 231,099.62/x
  3. Step 3: Cross multiply
    259,396.97x = 386,516.88 × 231,099.62
  4. Step 4: Simplify right side
    259,396.97x = 89,323,902,159.00
  5. Step 5: Solve for x
    x = 89,323,902,159.00/259,396.97
  6. Step 6: Final answer
    x = 344,352.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.