Home / 345,082.16-517,447.08-157,933.20

Finding the Fourth Proportional to 345,082.16, 517,447.08 and 157,933.20

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Solution

The fourth proportional to 345,082.16, 517,447.08 and 157,933.20 is: 236,819.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,082.16 : 517,447.08 = 157,933.20 : x
  2. Step 2: Convert to fraction form
    345,082.16/517,447.08 = 157,933.20/x
  3. Step 3: Cross multiply
    345,082.16x = 517,447.08 × 157,933.20
  4. Step 4: Simplify right side
    345,082.16x = 81,722,073,175.06
  5. Step 5: Solve for x
    x = 81,722,073,175.06/345,082.16
  6. Step 6: Final answer
    x = 236,819.18

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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.