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Finding the Fourth Proportional to 352.92, 529.32 and 136.56

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Solution

The fourth proportional to 352.92, 529.32 and 136.56 is: 204.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.92 : 529.32 = 136.56 : x
  2. Step 2: Convert to fraction form
    352.92/529.32 = 136.56/x
  3. Step 3: Cross multiply
    352.92x = 529.32 × 136.56
  4. Step 4: Simplify right side
    352.92x = 72,283.94
  5. Step 5: Solve for x
    x = 72,283.94/352.92
  6. Step 6: Final answer
    x = 204.82

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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.