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Finding the Fourth Proportional to 162.79, 244.26 and 132.70

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Solution

The fourth proportional to 162.79, 244.26 and 132.70 is: 199.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.79 : 244.26 = 132.70 : x
  2. Step 2: Convert to fraction form
    162.79/244.26 = 132.70/x
  3. Step 3: Cross multiply
    162.79x = 244.26 × 132.70
  4. Step 4: Simplify right side
    162.79x = 32,413.30
  5. Step 5: Solve for x
    x = 32,413.30/162.79
  6. Step 6: Final answer
    x = 199.11

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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.