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Finding the Fourth Proportional to 439.67, 658.89 and 302.37

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Solution

The fourth proportional to 439.67, 658.89 and 302.37 is: 453.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.67 : 658.89 = 302.37 : x
  2. Step 2: Convert to fraction form
    439.67/658.89 = 302.37/x
  3. Step 3: Cross multiply
    439.67x = 658.89 × 302.37
  4. Step 4: Simplify right side
    439.67x = 199,228.57
  5. Step 5: Solve for x
    x = 199,228.57/439.67
  6. Step 6: Final answer
    x = 453.14

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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.