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Finding the Fourth Proportional to 171,326.28, 256,841.61 and 82,457.52

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Solution

The fourth proportional to 171,326.28, 256,841.61 and 82,457.52 is: 123,615.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,326.28 : 256,841.61 = 82,457.52 : x
  2. Step 2: Convert to fraction form
    171,326.28/256,841.61 = 82,457.52/x
  3. Step 3: Cross multiply
    171,326.28x = 256,841.61 × 82,457.52
  4. Step 4: Simplify right side
    171,326.28x = 21,178,522,193.41
  5. Step 5: Solve for x
    x = 21,178,522,193.41/171,326.28
  6. Step 6: Final answer
    x = 123,615.14

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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.