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Finding the Fourth Proportional to 335.12, 499.75 and 322.97

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Solution

The fourth proportional to 335.12, 499.75 and 322.97 is: 481.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.12 : 499.75 = 322.97 : x
  2. Step 2: Convert to fraction form
    335.12/499.75 = 322.97/x
  3. Step 3: Cross multiply
    335.12x = 499.75 × 322.97
  4. Step 4: Simplify right side
    335.12x = 161,404.26
  5. Step 5: Solve for x
    x = 161,404.26/335.12
  6. Step 6: Final answer
    x = 481.63

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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.