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Finding the Fourth Proportional to 180.59, 270.41 and 99.32

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Solution

The fourth proportional to 180.59, 270.41 and 99.32 is: 148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.59 : 270.41 = 99.32 : x
  2. Step 2: Convert to fraction form
    180.59/270.41 = 99.32/x
  3. Step 3: Cross multiply
    180.59x = 270.41 × 99.32
  4. Step 4: Simplify right side
    180.59x = 26,855.27
  5. Step 5: Solve for x
    x = 26,855.27/180.59
  6. Step 6: Final answer
    x = 148.71

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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.