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Finding the Fourth Proportional to 171,331.28, 256,858.36 and 71,567.88

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Solution

The fourth proportional to 171,331.28, 256,858.36 and 71,567.88 is: 107,293.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,331.28 : 256,858.36 = 71,567.88 : x
  2. Step 2: Convert to fraction form
    171,331.28/256,858.36 = 71,567.88/x
  3. Step 3: Cross multiply
    171,331.28x = 256,858.36 × 71,567.88
  4. Step 4: Simplify right side
    171,331.28x = 18,382,808,285.48
  5. Step 5: Solve for x
    x = 18,382,808,285.48/171,331.28
  6. Step 6: Final answer
    x = 107,293.94

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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.