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Finding the Fourth Proportional to 410.82, 616.85 and 353.67

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Solution

The fourth proportional to 410.82, 616.85 and 353.67 is: 531.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.82 : 616.85 = 353.67 : x
  2. Step 2: Convert to fraction form
    410.82/616.85 = 353.67/x
  3. Step 3: Cross multiply
    410.82x = 616.85 × 353.67
  4. Step 4: Simplify right side
    410.82x = 218,161.34
  5. Step 5: Solve for x
    x = 218,161.34/410.82
  6. Step 6: Final answer
    x = 531.04

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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.