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Finding the Fourth Proportional to 171,182.31, 256,723.28 and 64,489.29

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Solution

The fourth proportional to 171,182.31, 256,723.28 and 64,489.29 is: 96,715.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,182.31 : 256,723.28 = 64,489.29 : x
  2. Step 2: Convert to fraction form
    171,182.31/256,723.28 = 64,489.29/x
  3. Step 3: Cross multiply
    171,182.31x = 256,723.28 × 64,489.29
  4. Step 4: Simplify right side
    171,182.31x = 16,555,901,641.69
  5. Step 5: Solve for x
    x = 16,555,901,641.69/171,182.31
  6. Step 6: Final answer
    x = 96,715.03

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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.