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Finding the Fourth Proportional to 1,027.96, 1,542.12 and 297.61

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Solution

The fourth proportional to 1,027.96, 1,542.12 and 297.61 is: 446.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027.96 : 1,542.12 = 297.61 : x
  2. Step 2: Convert to fraction form
    1,027.96/1,542.12 = 297.61/x
  3. Step 3: Cross multiply
    1,027.96x = 1,542.12 × 297.61
  4. Step 4: Simplify right side
    1,027.96x = 458,950.33
  5. Step 5: Solve for x
    x = 458,950.33/1,027.96
  6. Step 6: Final answer
    x = 446.47

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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.