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Finding the Fourth Proportional to 162.13, 244.30 and 133.87

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Solution

The fourth proportional to 162.13, 244.30 and 133.87 is: 201.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.13 : 244.30 = 133.87 : x
  2. Step 2: Convert to fraction form
    162.13/244.30 = 133.87/x
  3. Step 3: Cross multiply
    162.13x = 244.30 × 133.87
  4. Step 4: Simplify right side
    162.13x = 32,703.50
  5. Step 5: Solve for x
    x = 32,703.50/162.13
  6. Step 6: Final answer
    x = 201.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.