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Finding the Fourth Proportional to 171,332.28, 256,859.86 and 71,568.88

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Solution

The fourth proportional to 171,332.28, 256,859.86 and 71,568.88 is: 107,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,332.28 : 256,859.86 = 71,568.88 : x
  2. Step 2: Convert to fraction form
    171,332.28/256,859.86 = 71,568.88/x
  3. Step 3: Cross multiply
    171,332.28x = 256,859.86 × 71,568.88
  4. Step 4: Simplify right side
    171,332.28x = 18,383,172,497.16
  5. Step 5: Solve for x
    x = 18,383,172,497.16/171,332.28
  6. Step 6: Final answer
    x = 107,295.44

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1.5x scale

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.