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Finding the Fourth Proportional to 187.26, 279.51 and 169.04

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Solution

The fourth proportional to 187.26, 279.51 and 169.04 is: 252.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.26 : 279.51 = 169.04 : x
  2. Step 2: Convert to fraction form
    187.26/279.51 = 169.04/x
  3. Step 3: Cross multiply
    187.26x = 279.51 × 169.04
  4. Step 4: Simplify right side
    187.26x = 47,246.97
  5. Step 5: Solve for x
    x = 47,246.97/187.26
  6. Step 6: Final answer
    x = 252.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.