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Finding the Fourth Proportional to 532.56, 798.82 and 142.56

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Solution

The fourth proportional to 532.56, 798.82 and 142.56 is: 213.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.56 : 798.82 = 142.56 : x
  2. Step 2: Convert to fraction form
    532.56/798.82 = 142.56/x
  3. Step 3: Cross multiply
    532.56x = 798.82 × 142.56
  4. Step 4: Simplify right side
    532.56x = 113,879.78
  5. Step 5: Solve for x
    x = 113,879.78/532.56
  6. Step 6: Final answer
    x = 213.83

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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.