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Finding the Fourth Proportional to 534.87, 801.43 and 328.85

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Solution

The fourth proportional to 534.87, 801.43 and 328.85 is: 492.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.87 : 801.43 = 328.85 : x
  2. Step 2: Convert to fraction form
    534.87/801.43 = 328.85/x
  3. Step 3: Cross multiply
    534.87x = 801.43 × 328.85
  4. Step 4: Simplify right side
    534.87x = 263,546.61
  5. Step 5: Solve for x
    x = 263,546.61/534.87
  6. Step 6: Final answer
    x = 492.73

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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.