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Finding the Fourth Proportional to 454.64, 681.54 and 166.04

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Solution

The fourth proportional to 454.64, 681.54 and 166.04 is: 248.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.64 : 681.54 = 166.04 : x
  2. Step 2: Convert to fraction form
    454.64/681.54 = 166.04/x
  3. Step 3: Cross multiply
    454.64x = 681.54 × 166.04
  4. Step 4: Simplify right side
    454.64x = 113,162.90
  5. Step 5: Solve for x
    x = 113,162.90/454.64
  6. Step 6: Final answer
    x = 248.91

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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.