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Finding the Fourth Proportional to 349.91, 521.72 and 337.84

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Solution

The fourth proportional to 349.91, 521.72 and 337.84 is: 503.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.91 : 521.72 = 337.84 : x
  2. Step 2: Convert to fraction form
    349.91/521.72 = 337.84/x
  3. Step 3: Cross multiply
    349.91x = 521.72 × 337.84
  4. Step 4: Simplify right side
    349.91x = 176,257.88
  5. Step 5: Solve for x
    x = 176,257.88/349.91
  6. Step 6: Final answer
    x = 503.72

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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.