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Finding the Fourth Proportional to 269.80, 372.19 and 176.51

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Solution

The fourth proportional to 269.80, 372.19 and 176.51 is: 243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.80 : 372.19 = 176.51 : x
  2. Step 2: Convert to fraction form
    269.80/372.19 = 176.51/x
  3. Step 3: Cross multiply
    269.80x = 372.19 × 176.51
  4. Step 4: Simplify right side
    269.80x = 65,692.51
  5. Step 5: Solve for x
    x = 65,692.51/269.80
  6. Step 6: Final answer
    x = 243.49

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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.