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Finding the Fourth Proportional to 297,449.46, 446,108.55 and 87,103.80

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Solution

The fourth proportional to 297,449.46, 446,108.55 and 87,103.80 is: 130,636.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,449.46 : 446,108.55 = 87,103.80 : x
  2. Step 2: Convert to fraction form
    297,449.46/446,108.55 = 87,103.80/x
  3. Step 3: Cross multiply
    297,449.46x = 446,108.55 × 87,103.80
  4. Step 4: Simplify right side
    297,449.46x = 38,857,749,917.49
  5. Step 5: Solve for x
    x = 38,857,749,917.49/297,449.46
  6. Step 6: Final answer
    x = 130,636.48

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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.