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Finding the Fourth Proportional to 171,657.28, 257,436.78 and 59,308.12

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Solution

The fourth proportional to 171,657.28, 257,436.78 and 59,308.12 is: 88,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,657.28 : 257,436.78 = 59,308.12 : x
  2. Step 2: Convert to fraction form
    171,657.28/257,436.78 = 59,308.12/x
  3. Step 3: Cross multiply
    171,657.28x = 257,436.78 × 59,308.12
  4. Step 4: Simplify right side
    171,657.28x = 15,268,091,440.65
  5. Step 5: Solve for x
    x = 15,268,091,440.65/171,657.28
  6. Step 6: Final answer
    x = 88,945.20

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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.