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Finding the Fourth Proportional to 297,951.60, 446,999.40 and 87,589.20

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Solution

The fourth proportional to 297,951.60, 446,999.40 and 87,589.20 is: 131,404.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,951.60 : 446,999.40 = 87,589.20 : x
  2. Step 2: Convert to fraction form
    297,951.60/446,999.40 = 87,589.20/x
  3. Step 3: Cross multiply
    297,951.60x = 446,999.40 × 87,589.20
  4. Step 4: Simplify right side
    297,951.60x = 39,152,319,846.48
  5. Step 5: Solve for x
    x = 39,152,319,846.48/297,951.60
  6. Step 6: Final answer
    x = 131,404.97

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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.