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Finding the Fourth Proportional to 454.95, 682.92 and 292.77

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Solution

The fourth proportional to 454.95, 682.92 and 292.77 is: 439.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.95 : 682.92 = 292.77 : x
  2. Step 2: Convert to fraction form
    454.95/682.92 = 292.77/x
  3. Step 3: Cross multiply
    454.95x = 682.92 × 292.77
  4. Step 4: Simplify right side
    454.95x = 199,938.49
  5. Step 5: Solve for x
    x = 199,938.49/454.95
  6. Step 6: Final answer
    x = 439.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.