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Finding the Fourth Proportional to 454.76, 627.36 and 349.66

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Solution

The fourth proportional to 454.76, 627.36 and 349.66 is: 482.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.76 : 627.36 = 349.66 : x
  2. Step 2: Convert to fraction form
    454.76/627.36 = 349.66/x
  3. Step 3: Cross multiply
    454.76x = 627.36 × 349.66
  4. Step 4: Simplify right side
    454.76x = 219,362.70
  5. Step 5: Solve for x
    x = 219,362.70/454.76
  6. Step 6: Final answer
    x = 482.37

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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.