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Finding the Fourth Proportional to 410.40, 614.70 and 301.86

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Solution

The fourth proportional to 410.40, 614.70 and 301.86 is: 452.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.40 : 614.70 = 301.86 : x
  2. Step 2: Convert to fraction form
    410.40/614.70 = 301.86/x
  3. Step 3: Cross multiply
    410.40x = 614.70 × 301.86
  4. Step 4: Simplify right side
    410.40x = 185,553.34
  5. Step 5: Solve for x
    x = 185,553.34/410.40
  6. Step 6: Final answer
    x = 452.13

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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.