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Finding the Fourth Proportional to 298,869.78, 448,149.15 and 88,479.30

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Solution

The fourth proportional to 298,869.78, 448,149.15 and 88,479.30 is: 132,672.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,869.78 : 448,149.15 = 88,479.30 : x
  2. Step 2: Convert to fraction form
    298,869.78/448,149.15 = 88,479.30/x
  3. Step 3: Cross multiply
    298,869.78x = 448,149.15 × 88,479.30
  4. Step 4: Simplify right side
    298,869.78x = 39,651,923,087.60
  5. Step 5: Solve for x
    x = 39,651,923,087.60/298,869.78
  6. Step 6: Final answer
    x = 132,672.91

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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.