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Finding the Fourth Proportional to 337.39, 465.78 and 213.18

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Solution

The fourth proportional to 337.39, 465.78 and 213.18 is: 294.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.39 : 465.78 = 213.18 : x
  2. Step 2: Convert to fraction form
    337.39/465.78 = 213.18/x
  3. Step 3: Cross multiply
    337.39x = 465.78 × 213.18
  4. Step 4: Simplify right side
    337.39x = 99,294.85
  5. Step 5: Solve for x
    x = 99,294.85/337.39
  6. Step 6: Final answer
    x = 294.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.