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Finding the Fourth Proportional to 339.76, 506.04 and 338.10

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Solution

The fourth proportional to 339.76, 506.04 and 338.10 is: 503.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.76 : 506.04 = 338.10 : x
  2. Step 2: Convert to fraction form
    339.76/506.04 = 338.10/x
  3. Step 3: Cross multiply
    339.76x = 506.04 × 338.10
  4. Step 4: Simplify right side
    339.76x = 171,092.12
  5. Step 5: Solve for x
    x = 171,092.12/339.76
  6. Step 6: Final answer
    x = 503.57

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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.