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Finding the Fourth Proportional to 238,694.64, 329,400.90 and 131,265.42

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Solution

The fourth proportional to 238,694.64, 329,400.90 and 131,265.42 is: 181,147.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,694.64 : 329,400.90 = 131,265.42 : x
  2. Step 2: Convert to fraction form
    238,694.64/329,400.90 = 131,265.42/x
  3. Step 3: Cross multiply
    238,694.64x = 329,400.90 × 131,265.42
  4. Step 4: Simplify right side
    238,694.64x = 43,238,947,486.88
  5. Step 5: Solve for x
    x = 43,238,947,486.88/238,694.64
  6. Step 6: Final answer
    x = 181,147.54

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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.