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Finding the Fourth Proportional to 238,610.89, 329,284.91 and 129,715.20

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Solution

The fourth proportional to 238,610.89, 329,284.91 and 129,715.20 is: 179,008.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,610.89 : 329,284.91 = 129,715.20 : x
  2. Step 2: Convert to fraction form
    238,610.89/329,284.91 = 129,715.20/x
  3. Step 3: Cross multiply
    238,610.89x = 329,284.91 × 129,715.20
  4. Step 4: Simplify right side
    238,610.89x = 42,713,258,281.92
  5. Step 5: Solve for x
    x = 42,713,258,281.92/238,610.89
  6. Step 6: Final answer
    x = 179,008.00

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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.