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Finding the Fourth Proportional to 238,798.80, 329,535.54 and 129,899.70

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Solution

The fourth proportional to 238,798.80, 329,535.54 and 129,899.70 is: 179,257.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,798.80 : 329,535.54 = 129,899.70 : x
  2. Step 2: Convert to fraction form
    238,798.80/329,535.54 = 129,899.70/x
  3. Step 3: Cross multiply
    238,798.80x = 329,535.54 × 129,899.70
  4. Step 4: Simplify right side
    238,798.80x = 42,806,567,785.34
  5. Step 5: Solve for x
    x = 42,806,567,785.34/238,798.80
  6. Step 6: Final answer
    x = 179,257.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.