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Finding the Fourth Proportional to 238,757.22, 329,478.93 and 129,860.28

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Solution

The fourth proportional to 238,757.22, 329,478.93 and 129,860.28 is: 179,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,757.22 : 329,478.93 = 129,860.28 : x
  2. Step 2: Convert to fraction form
    238,757.22/329,478.93 = 129,860.28/x
  3. Step 3: Cross multiply
    238,757.22x = 329,478.93 × 129,860.28
  4. Step 4: Simplify right side
    238,757.22x = 42,786,226,103.90
  5. Step 5: Solve for x
    x = 42,786,226,103.90/238,757.22
  6. Step 6: Final answer
    x = 179,203.90

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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.