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Finding the Fourth Proportional to 168.43, 252.56 and 58.69

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Solution

The fourth proportional to 168.43, 252.56 and 58.69 is: 88.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.43 : 252.56 = 58.69 : x
  2. Step 2: Convert to fraction form
    168.43/252.56 = 58.69/x
  3. Step 3: Cross multiply
    168.43x = 252.56 × 58.69
  4. Step 4: Simplify right side
    168.43x = 14,822.75
  5. Step 5: Solve for x
    x = 14,822.75/168.43
  6. Step 6: Final answer
    x = 88.01

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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.