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Finding the Fourth Proportional to 537.83, 742.22 and 380.74

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Solution

The fourth proportional to 537.83, 742.22 and 380.74 is: 525.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.83 : 742.22 = 380.74 : x
  2. Step 2: Convert to fraction form
    537.83/742.22 = 380.74/x
  3. Step 3: Cross multiply
    537.83x = 742.22 × 380.74
  4. Step 4: Simplify right side
    537.83x = 282,589.08
  5. Step 5: Solve for x
    x = 282,589.08/537.83
  6. Step 6: Final answer
    x = 525.43

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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.