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Finding the Fourth Proportional to 269.88, 373.46 and 230.49

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Solution

The fourth proportional to 269.88, 373.46 and 230.49 is: 318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.88 : 373.46 = 230.49 : x
  2. Step 2: Convert to fraction form
    269.88/373.46 = 230.49/x
  3. Step 3: Cross multiply
    269.88x = 373.46 × 230.49
  4. Step 4: Simplify right side
    269.88x = 86,077.64
  5. Step 5: Solve for x
    x = 86,077.64/269.88
  6. Step 6: Final answer
    x = 318.95

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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.