Home / 308,082.20-425,148.62-172,118.03

Finding the Fourth Proportional to 308,082.20, 425,148.62 and 172,118.03

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Solution

The fourth proportional to 308,082.20, 425,148.62 and 172,118.03 is: 237,520.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,082.20 : 425,148.62 = 172,118.03 : x
  2. Step 2: Convert to fraction form
    308,082.20/425,148.62 = 172,118.03/x
  3. Step 3: Cross multiply
    308,082.20x = 425,148.62 × 172,118.03
  4. Step 4: Simplify right side
    308,082.20x = 73,175,739,945.29
  5. Step 5: Solve for x
    x = 73,175,739,945.29/308,082.20
  6. Step 6: Final answer
    x = 237,520.18

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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.