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Finding the Fourth Proportional to 755.92, 1,134.03 and 262.29

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Solution

The fourth proportional to 755.92, 1,134.03 and 262.29 is: 393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    755.92 : 1,134.03 = 262.29 : x
  2. Step 2: Convert to fraction form
    755.92/1,134.03 = 262.29/x
  3. Step 3: Cross multiply
    755.92x = 1,134.03 × 262.29
  4. Step 4: Simplify right side
    755.92x = 297,444.24
  5. Step 5: Solve for x
    x = 297,444.24/755.92
  6. Step 6: Final answer
    x = 393.48

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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.