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Finding the Fourth Proportional to 349.25, 519.17 and 338.89

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Solution

The fourth proportional to 349.25, 519.17 and 338.89 is: 503.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.25 : 519.17 = 338.89 : x
  2. Step 2: Convert to fraction form
    349.25/519.17 = 338.89/x
  3. Step 3: Cross multiply
    349.25x = 519.17 × 338.89
  4. Step 4: Simplify right side
    349.25x = 175,941.52
  5. Step 5: Solve for x
    x = 175,941.52/349.25
  6. Step 6: Final answer
    x = 503.77

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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.