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Finding the Fourth Proportional to 328,082.10, 491,734.35 and 170,229.30

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Solution

The fourth proportional to 328,082.10, 491,734.35 and 170,229.30 is: 255,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,082.10 : 491,734.35 = 170,229.30 : x
  2. Step 2: Convert to fraction form
    328,082.10/491,734.35 = 170,229.30/x
  3. Step 3: Cross multiply
    328,082.10x = 491,734.35 × 170,229.30
  4. Step 4: Simplify right side
    328,082.10x = 83,707,594,186.46
  5. Step 5: Solve for x
    x = 83,707,594,186.46/328,082.10
  6. Step 6: Final answer
    x = 255,142.22

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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.