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Finding the Fourth Proportional to 169.42, 233.65 and 130.13

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Solution

The fourth proportional to 169.42, 233.65 and 130.13 is: 179.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.42 : 233.65 = 130.13 : x
  2. Step 2: Convert to fraction form
    169.42/233.65 = 130.13/x
  3. Step 3: Cross multiply
    169.42x = 233.65 × 130.13
  4. Step 4: Simplify right side
    169.42x = 30,404.87
  5. Step 5: Solve for x
    x = 30,404.87/169.42
  6. Step 6: Final answer
    x = 179.46

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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.