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Finding the Fourth Proportional to 454.44, 626.40 and 371.42

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Solution

The fourth proportional to 454.44, 626.40 and 371.42 is: 511.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.44 : 626.40 = 371.42 : x
  2. Step 2: Convert to fraction form
    454.44/626.40 = 371.42/x
  3. Step 3: Cross multiply
    454.44x = 626.40 × 371.42
  4. Step 4: Simplify right side
    454.44x = 232,656.71
  5. Step 5: Solve for x
    x = 232,656.71/454.44
  6. Step 6: Final answer
    x = 511.96

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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.