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Finding the Fourth Proportional to 337.69, 503.21 and 326.68

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Solution

The fourth proportional to 337.69, 503.21 and 326.68 is: 486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.69 : 503.21 = 326.68 : x
  2. Step 2: Convert to fraction form
    337.69/503.21 = 326.68/x
  3. Step 3: Cross multiply
    337.69x = 503.21 × 326.68
  4. Step 4: Simplify right side
    337.69x = 164,388.64
  5. Step 5: Solve for x
    x = 164,388.64/337.69
  6. Step 6: Final answer
    x = 486.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.