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Finding the Fourth Proportional to 335.26, 500.72 and 316.63

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Solution

The fourth proportional to 335.26, 500.72 and 316.63 is: 472.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.26 : 500.72 = 316.63 : x
  2. Step 2: Convert to fraction form
    335.26/500.72 = 316.63/x
  3. Step 3: Cross multiply
    335.26x = 500.72 × 316.63
  4. Step 4: Simplify right side
    335.26x = 158,542.97
  5. Step 5: Solve for x
    x = 158,542.97/335.26
  6. Step 6: Final answer
    x = 472.90

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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.