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Finding the Fourth Proportional to 339.74, 506.54 and 336.38

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Solution

The fourth proportional to 339.74, 506.54 and 336.38 is: 501.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.74 : 506.54 = 336.38 : x
  2. Step 2: Convert to fraction form
    339.74/506.54 = 336.38/x
  3. Step 3: Cross multiply
    339.74x = 506.54 × 336.38
  4. Step 4: Simplify right side
    339.74x = 170,389.93
  5. Step 5: Solve for x
    x = 170,389.93/339.74
  6. Step 6: Final answer
    x = 501.53

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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.