Home / 238,082.40-328,542.72-130,649.76

Finding the Fourth Proportional to 238,082.40, 328,542.72 and 130,649.76

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Solution

The fourth proportional to 238,082.40, 328,542.72 and 130,649.76 is: 180,290.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,082.40 : 328,542.72 = 130,649.76 : x
  2. Step 2: Convert to fraction form
    238,082.40/328,542.72 = 130,649.76/x
  3. Step 3: Cross multiply
    238,082.40x = 328,542.72 × 130,649.76
  4. Step 4: Simplify right side
    238,082.40x = 42,924,027,517.75
  5. Step 5: Solve for x
    x = 42,924,027,517.75/238,082.40
  6. Step 6: Final answer
    x = 180,290.64

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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.