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Finding the Fourth Proportional to 534.75, 801.91 and 260.76

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Solution

The fourth proportional to 534.75, 801.91 and 260.76 is: 391.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.75 : 801.91 = 260.76 : x
  2. Step 2: Convert to fraction form
    534.75/801.91 = 260.76/x
  3. Step 3: Cross multiply
    534.75x = 801.91 × 260.76
  4. Step 4: Simplify right side
    534.75x = 209,106.05
  5. Step 5: Solve for x
    x = 209,106.05/534.75
  6. Step 6: Final answer
    x = 391.04

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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.