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Finding the Fourth Proportional to 534.57, 800.94 and 260.28

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Solution

The fourth proportional to 534.57, 800.94 and 260.28 is: 389.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.57 : 800.94 = 260.28 : x
  2. Step 2: Convert to fraction form
    534.57/800.94 = 260.28/x
  3. Step 3: Cross multiply
    534.57x = 800.94 × 260.28
  4. Step 4: Simplify right side
    534.57x = 208,468.66
  5. Step 5: Solve for x
    x = 208,468.66/534.57
  6. Step 6: Final answer
    x = 389.97

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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.