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Finding the Fourth Proportional to 269.58, 372.18 and 207.29

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Solution

The fourth proportional to 269.58, 372.18 and 207.29 is: 286.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.58 : 372.18 = 207.29 : x
  2. Step 2: Convert to fraction form
    269.58/372.18 = 207.29/x
  3. Step 3: Cross multiply
    269.58x = 372.18 × 207.29
  4. Step 4: Simplify right side
    269.58x = 77,150.90
  5. Step 5: Solve for x
    x = 77,150.90/269.58
  6. Step 6: Final answer
    x = 286.19

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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.