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Finding the Fourth Proportional to 454.73, 628.01 and 356.33

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Solution

The fourth proportional to 454.73, 628.01 and 356.33 is: 492.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.73 : 628.01 = 356.33 : x
  2. Step 2: Convert to fraction form
    454.73/628.01 = 356.33/x
  3. Step 3: Cross multiply
    454.73x = 628.01 × 356.33
  4. Step 4: Simplify right side
    454.73x = 223,773.88
  5. Step 5: Solve for x
    x = 223,773.88/454.73
  6. Step 6: Final answer
    x = 492.11

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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.