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Finding the Fourth Proportional to 950.37, 1,311.44 and 557.52

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Solution

The fourth proportional to 950.37, 1,311.44 and 557.52 is: 769.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.37 : 1,311.44 = 557.52 : x
  2. Step 2: Convert to fraction form
    950.37/1,311.44 = 557.52/x
  3. Step 3: Cross multiply
    950.37x = 1,311.44 × 557.52
  4. Step 4: Simplify right side
    950.37x = 731,151.24
  5. Step 5: Solve for x
    x = 731,151.24/950.37
  6. Step 6: Final answer
    x = 769.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.