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Finding the Fourth Proportional to 297,228, 445,867.92 and 75,612

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Solution

The fourth proportional to 297,228, 445,867.92 and 75,612 is: 113,424.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,228 : 445,867.92 = 75,612 : x
  2. Step 2: Convert to fraction form
    297,228/445,867.92 = 75,612/x
  3. Step 3: Cross multiply
    297,228x = 445,867.92 × 75,612
  4. Step 4: Simplify right side
    297,228x = 33,712,965,167.04
  5. Step 5: Solve for x
    x = 33,712,965,167.04/297,228
  6. Step 6: Final answer
    x = 113,424.59

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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.