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Finding the Fourth Proportional to 773.08, 1,159.31 and 225.32

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Solution

The fourth proportional to 773.08, 1,159.31 and 225.32 is: 337.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.08 : 1,159.31 = 225.32 : x
  2. Step 2: Convert to fraction form
    773.08/1,159.31 = 225.32/x
  3. Step 3: Cross multiply
    773.08x = 1,159.31 × 225.32
  4. Step 4: Simplify right side
    773.08x = 261,210.50
  5. Step 5: Solve for x
    x = 261,210.50/773.08
  6. Step 6: Final answer
    x = 337.88

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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.