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Finding the Fourth Proportional to 342.43, 513.24 and 180.03

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Solution

The fourth proportional to 342.43, 513.24 and 180.03 is: 269.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.43 : 513.24 = 180.03 : x
  2. Step 2: Convert to fraction form
    342.43/513.24 = 180.03/x
  3. Step 3: Cross multiply
    342.43x = 513.24 × 180.03
  4. Step 4: Simplify right side
    342.43x = 92,398.60
  5. Step 5: Solve for x
    x = 92,398.60/342.43
  6. Step 6: Final answer
    x = 269.83

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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.