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Finding the Fourth Proportional to 162.80, 224.61 and 97.27

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Solution

The fourth proportional to 162.80, 224.61 and 97.27 is: 134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.80 : 224.61 = 97.27 : x
  2. Step 2: Convert to fraction form
    162.80/224.61 = 97.27/x
  3. Step 3: Cross multiply
    162.80x = 224.61 × 97.27
  4. Step 4: Simplify right side
    162.80x = 21,847.81
  5. Step 5: Solve for x
    x = 21,847.81/162.80
  6. Step 6: Final answer
    x = 134.20

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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.