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Finding the Fourth Proportional to 454.13, 626.69 and 254.97

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Solution

The fourth proportional to 454.13, 626.69 and 254.97 is: 351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.13 : 626.69 = 254.97 : x
  2. Step 2: Convert to fraction form
    454.13/626.69 = 254.97/x
  3. Step 3: Cross multiply
    454.13x = 626.69 × 254.97
  4. Step 4: Simplify right side
    454.13x = 159,782.74
  5. Step 5: Solve for x
    x = 159,782.74/454.13
  6. Step 6: Final answer
    x = 351.85

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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.