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Finding the Fourth Proportional to 162.67, 243.99 and 101.68

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Solution

The fourth proportional to 162.67, 243.99 and 101.68 is: 152.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.67 : 243.99 = 101.68 : x
  2. Step 2: Convert to fraction form
    162.67/243.99 = 101.68/x
  3. Step 3: Cross multiply
    162.67x = 243.99 × 101.68
  4. Step 4: Simplify right side
    162.67x = 24,808.90
  5. Step 5: Solve for x
    x = 24,808.90/162.67
  6. Step 6: Final answer
    x = 152.51

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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.