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Finding the Fourth Proportional to 169.88, 233.93 and 123.17

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Solution

The fourth proportional to 169.88, 233.93 and 123.17 is: 169.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.88 : 233.93 = 123.17 : x
  2. Step 2: Convert to fraction form
    169.88/233.93 = 123.17/x
  3. Step 3: Cross multiply
    169.88x = 233.93 × 123.17
  4. Step 4: Simplify right side
    169.88x = 28,814.05
  5. Step 5: Solve for x
    x = 28,814.05/169.88
  6. Step 6: Final answer
    x = 169.62

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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.