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Finding the Fourth Proportional to 452.96, 679.48 and 144.88

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Solution

The fourth proportional to 452.96, 679.48 and 144.88 is: 217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.96 : 679.48 = 144.88 : x
  2. Step 2: Convert to fraction form
    452.96/679.48 = 144.88/x
  3. Step 3: Cross multiply
    452.96x = 679.48 × 144.88
  4. Step 4: Simplify right side
    452.96x = 98,443.06
  5. Step 5: Solve for x
    x = 98,443.06/452.96
  6. Step 6: Final answer
    x = 217.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.