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Finding the Fourth Proportional to 153,310.62, 211,552.92 and 88,800.80

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Solution

The fourth proportional to 153,310.62, 211,552.92 and 88,800.80 is: 122,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,310.62 : 211,552.92 = 88,800.80 : x
  2. Step 2: Convert to fraction form
    153,310.62/211,552.92 = 88,800.80/x
  3. Step 3: Cross multiply
    153,310.62x = 211,552.92 × 88,800.80
  4. Step 4: Simplify right side
    153,310.62x = 18,786,067,480.57
  5. Step 5: Solve for x
    x = 18,786,067,480.57/153,310.62
  6. Step 6: Final answer
    x = 122,535.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.