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Finding the Fourth Proportional to 232.10, 320.19 and 149.17

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Solution

The fourth proportional to 232.10, 320.19 and 149.17 is: 205.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.10 : 320.19 = 149.17 : x
  2. Step 2: Convert to fraction form
    232.10/320.19 = 149.17/x
  3. Step 3: Cross multiply
    232.10x = 320.19 × 149.17
  4. Step 4: Simplify right side
    232.10x = 47,762.58
  5. Step 5: Solve for x
    x = 47,762.58/232.10
  6. Step 6: Final answer
    x = 205.79

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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.