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Finding the Fourth Proportional to 297,252, 445,936.32 and 131,040

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Solution

The fourth proportional to 297,252, 445,936.32 and 131,040 is: 196,585.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,252 : 445,936.32 = 131,040 : x
  2. Step 2: Convert to fraction form
    297,252/445,936.32 = 131,040/x
  3. Step 3: Cross multiply
    297,252x = 445,936.32 × 131,040
  4. Step 4: Simplify right side
    297,252x = 58,435,495,372.80
  5. Step 5: Solve for x
    x = 58,435,495,372.80/297,252
  6. Step 6: Final answer
    x = 196,585.71

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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.