Home / 221,346.55-331,520.28-155,082.43

Finding the Fourth Proportional to 221,346.55, 331,520.28 and 155,082.43

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Solution

The fourth proportional to 221,346.55, 331,520.28 and 155,082.43 is: 232,273.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,346.55 : 331,520.28 = 155,082.43 : x
  2. Step 2: Convert to fraction form
    221,346.55/331,520.28 = 155,082.43/x
  3. Step 3: Cross multiply
    221,346.55x = 331,520.28 × 155,082.43
  4. Step 4: Simplify right side
    221,346.55x = 51,412,970,616.68
  5. Step 5: Solve for x
    x = 51,412,970,616.68/221,346.55
  6. Step 6: Final answer
    x = 232,273.65

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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.