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Finding the Fourth Proportional to 257,364.31, 386,107.61 and 88,886.03

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Solution

The fourth proportional to 257,364.31, 386,107.61 and 88,886.03 is: 133,350.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,364.31 : 386,107.61 = 88,886.03 : x
  2. Step 2: Convert to fraction form
    257,364.31/386,107.61 = 88,886.03/x
  3. Step 3: Cross multiply
    257,364.31x = 386,107.61 × 88,886.03
  4. Step 4: Simplify right side
    257,364.31x = 34,319,572,605.69
  5. Step 5: Solve for x
    x = 34,319,572,605.69/257,364.31
  6. Step 6: Final answer
    x = 133,350.16

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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.