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Finding the Fourth Proportional to 537.25, 805.89 and 372.21

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Solution

The fourth proportional to 537.25, 805.89 and 372.21 is: 558.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.25 : 805.89 = 372.21 : x
  2. Step 2: Convert to fraction form
    537.25/805.89 = 372.21/x
  3. Step 3: Cross multiply
    537.25x = 805.89 × 372.21
  4. Step 4: Simplify right side
    537.25x = 299,960.32
  5. Step 5: Solve for x
    x = 299,960.32/537.25
  6. Step 6: Final answer
    x = 558.33

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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.