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Finding the Fourth Proportional to 334.92, 502.38 and 317.15

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Solution

The fourth proportional to 334.92, 502.38 and 317.15 is: 475.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.92 : 502.38 = 317.15 : x
  2. Step 2: Convert to fraction form
    334.92/502.38 = 317.15/x
  3. Step 3: Cross multiply
    334.92x = 502.38 × 317.15
  4. Step 4: Simplify right side
    334.92x = 159,325.72
  5. Step 5: Solve for x
    x = 159,325.72/334.92
  6. Step 6: Final answer
    x = 475.71

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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.