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Finding the Fourth Proportional to 231,082.60, 345,932.70 and 217,412.20

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Solution

The fourth proportional to 231,082.60, 345,932.70 and 217,412.20 is: 325,467.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,082.60 : 345,932.70 = 217,412.20 : x
  2. Step 2: Convert to fraction form
    231,082.60/345,932.70 = 217,412.20/x
  3. Step 3: Cross multiply
    231,082.60x = 345,932.70 × 217,412.20
  4. Step 4: Simplify right side
    231,082.60x = 75,209,989,358.94
  5. Step 5: Solve for x
    x = 75,209,989,358.94/231,082.60
  6. Step 6: Final answer
    x = 325,467.99

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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.