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Finding the Fourth Proportional to 452.83, 679.29 and 144.73

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Solution

The fourth proportional to 452.83, 679.29 and 144.73 is: 217.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.83 : 679.29 = 144.73 : x
  2. Step 2: Convert to fraction form
    452.83/679.29 = 144.73/x
  3. Step 3: Cross multiply
    452.83x = 679.29 × 144.73
  4. Step 4: Simplify right side
    452.83x = 98,313.46
  5. Step 5: Solve for x
    x = 98,313.46/452.83
  6. Step 6: Final answer
    x = 217.11

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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.