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Finding the Fourth Proportional to 156.24, 233.80 and 132.12

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Solution

The fourth proportional to 156.24, 233.80 and 132.12 is: 197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.24 : 233.80 = 132.12 : x
  2. Step 2: Convert to fraction form
    156.24/233.80 = 132.12/x
  3. Step 3: Cross multiply
    156.24x = 233.80 × 132.12
  4. Step 4: Simplify right side
    156.24x = 30,889.66
  5. Step 5: Solve for x
    x = 30,889.66/156.24
  6. Step 6: Final answer
    x = 197.71

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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.