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Finding the Fourth Proportional to 336.27, 503.74 and 258.97

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Solution

The fourth proportional to 336.27, 503.74 and 258.97 is: 387.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.27 : 503.74 = 258.97 : x
  2. Step 2: Convert to fraction form
    336.27/503.74 = 258.97/x
  3. Step 3: Cross multiply
    336.27x = 503.74 × 258.97
  4. Step 4: Simplify right side
    336.27x = 130,452.61
  5. Step 5: Solve for x
    x = 130,452.61/336.27
  6. Step 6: Final answer
    x = 387.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.