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Finding the Fourth Proportional to 238,555.16, 329,201.69 and 131,122.89

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Solution

The fourth proportional to 238,555.16, 329,201.69 and 131,122.89 is: 180,947.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,555.16 : 329,201.69 = 131,122.89 : x
  2. Step 2: Convert to fraction form
    238,555.16/329,201.69 = 131,122.89/x
  3. Step 3: Cross multiply
    238,555.16x = 329,201.69 × 131,122.89
  4. Step 4: Simplify right side
    238,555.16x = 43,165,876,330.07
  5. Step 5: Solve for x
    x = 43,165,876,330.07/238,555.16
  6. Step 6: Final answer
    x = 180,947.15

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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.