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Finding the Fourth Proportional to 439.03, 658.11 and 356.93

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Solution

The fourth proportional to 439.03, 658.11 and 356.93 is: 535.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.03 : 658.11 = 356.93 : x
  2. Step 2: Convert to fraction form
    439.03/658.11 = 356.93/x
  3. Step 3: Cross multiply
    439.03x = 658.11 × 356.93
  4. Step 4: Simplify right side
    439.03x = 234,899.72
  5. Step 5: Solve for x
    x = 234,899.72/439.03
  6. Step 6: Final answer
    x = 535.05

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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.