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Finding the Fourth Proportional to 454.68, 681.70 and 234.87

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Solution

The fourth proportional to 454.68, 681.70 and 234.87 is: 352.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.68 : 681.70 = 234.87 : x
  2. Step 2: Convert to fraction form
    454.68/681.70 = 234.87/x
  3. Step 3: Cross multiply
    454.68x = 681.70 × 234.87
  4. Step 4: Simplify right side
    454.68x = 160,110.88
  5. Step 5: Solve for x
    x = 160,110.88/454.68
  6. Step 6: Final answer
    x = 352.14

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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.