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Finding the Fourth Proportional to 162.71, 242.94 and 132.33

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Solution

The fourth proportional to 162.71, 242.94 and 132.33 is: 197.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.71 : 242.94 = 132.33 : x
  2. Step 2: Convert to fraction form
    162.71/242.94 = 132.33/x
  3. Step 3: Cross multiply
    162.71x = 242.94 × 132.33
  4. Step 4: Simplify right side
    162.71x = 32,147.59
  5. Step 5: Solve for x
    x = 32,147.59/162.71
  6. Step 6: Final answer
    x = 197.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.