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Finding the Fourth Proportional to 162.46, 244.65 and 136.95

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Solution

The fourth proportional to 162.46, 244.65 and 136.95 is: 206.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.46 : 244.65 = 136.95 : x
  2. Step 2: Convert to fraction form
    162.46/244.65 = 136.95/x
  3. Step 3: Cross multiply
    162.46x = 244.65 × 136.95
  4. Step 4: Simplify right side
    162.46x = 33,504.82
  5. Step 5: Solve for x
    x = 33,504.82/162.46
  6. Step 6: Final answer
    x = 206.23

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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.