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Finding the Fourth Proportional to 423.52, 584.55 and 248.89

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Solution

The fourth proportional to 423.52, 584.55 and 248.89 is: 343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.52 : 584.55 = 248.89 : x
  2. Step 2: Convert to fraction form
    423.52/584.55 = 248.89/x
  3. Step 3: Cross multiply
    423.52x = 584.55 × 248.89
  4. Step 4: Simplify right side
    423.52x = 145,488.65
  5. Step 5: Solve for x
    x = 145,488.65/423.52
  6. Step 6: Final answer
    x = 343.52

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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.