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Finding the Fourth Proportional to 433.92, 650.08 and 271.68

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Solution

The fourth proportional to 433.92, 650.08 and 271.68 is: 407.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    433.92 : 650.08 = 271.68 : x
  2. Step 2: Convert to fraction form
    433.92/650.08 = 271.68/x
  3. Step 3: Cross multiply
    433.92x = 650.08 × 271.68
  4. Step 4: Simplify right side
    433.92x = 176,613.73
  5. Step 5: Solve for x
    x = 176,613.73/433.92
  6. Step 6: Final answer
    x = 407.02

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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.