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Finding the Fourth Proportional to 452.90, 679.08 and 144.68

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Solution

The fourth proportional to 452.90, 679.08 and 144.68 is: 216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.90 : 679.08 = 144.68 : x
  2. Step 2: Convert to fraction form
    452.90/679.08 = 144.68/x
  3. Step 3: Cross multiply
    452.90x = 679.08 × 144.68
  4. Step 4: Simplify right side
    452.90x = 98,249.29
  5. Step 5: Solve for x
    x = 98,249.29/452.90
  6. Step 6: Final answer
    x = 216.93

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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.