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Finding the Fourth Proportional to 454.13, 626.64 and 267.72

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Solution

The fourth proportional to 454.13, 626.64 and 267.72 is: 369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.13 : 626.64 = 267.72 : x
  2. Step 2: Convert to fraction form
    454.13/626.64 = 267.72/x
  3. Step 3: Cross multiply
    454.13x = 626.64 × 267.72
  4. Step 4: Simplify right side
    454.13x = 167,764.06
  5. Step 5: Solve for x
    x = 167,764.06/454.13
  6. Step 6: Final answer
    x = 369.42

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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.