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Finding the Fourth Proportional to 343.59, 514.99 and 160.71

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Solution

The fourth proportional to 343.59, 514.99 and 160.71 is: 240.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.59 : 514.99 = 160.71 : x
  2. Step 2: Convert to fraction form
    343.59/514.99 = 160.71/x
  3. Step 3: Cross multiply
    343.59x = 514.99 × 160.71
  4. Step 4: Simplify right side
    343.59x = 82,764.04
  5. Step 5: Solve for x
    x = 82,764.04/343.59
  6. Step 6: Final answer
    x = 240.88

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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.