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Finding the Fourth Proportional to 352.82, 487.04 and 240.81

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Solution

The fourth proportional to 352.82, 487.04 and 240.81 is: 332.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.82 : 487.04 = 240.81 : x
  2. Step 2: Convert to fraction form
    352.82/487.04 = 240.81/x
  3. Step 3: Cross multiply
    352.82x = 487.04 × 240.81
  4. Step 4: Simplify right side
    352.82x = 117,282.90
  5. Step 5: Solve for x
    x = 117,282.90/352.82
  6. Step 6: Final answer
    x = 332.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.