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Finding the Fourth Proportional to 386.08, 576.31 and 337.48

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Solution

The fourth proportional to 386.08, 576.31 and 337.48 is: 503.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    386.08 : 576.31 = 337.48 : x
  2. Step 2: Convert to fraction form
    386.08/576.31 = 337.48/x
  3. Step 3: Cross multiply
    386.08x = 576.31 × 337.48
  4. Step 4: Simplify right side
    386.08x = 194,491.41
  5. Step 5: Solve for x
    x = 194,491.41/386.08
  6. Step 6: Final answer
    x = 503.76

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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.