Home / 220,179.60-329,613.30-131,387.40

Finding the Fourth Proportional to 220,179.60, 329,613.30 and 131,387.40

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Solution

The fourth proportional to 220,179.60, 329,613.30 and 131,387.40 is: 196,689.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,179.60 : 329,613.30 = 131,387.40 : x
  2. Step 2: Convert to fraction form
    220,179.60/329,613.30 = 131,387.40/x
  3. Step 3: Cross multiply
    220,179.60x = 329,613.30 × 131,387.40
  4. Step 4: Simplify right side
    220,179.60x = 43,307,034,492.42
  5. Step 5: Solve for x
    x = 43,307,034,492.42/220,179.60
  6. Step 6: Final answer
    x = 196,689.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.