Home / 326,137.20-488,987.10-148,552.80

Finding the Fourth Proportional to 326,137.20, 488,987.10 and 148,552.80

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Solution

The fourth proportional to 326,137.20, 488,987.10 and 148,552.80 is: 222,729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,137.20 : 488,987.10 = 148,552.80 : x
  2. Step 2: Convert to fraction form
    326,137.20/488,987.10 = 148,552.80/x
  3. Step 3: Cross multiply
    326,137.20x = 488,987.10 × 148,552.80
  4. Step 4: Simplify right side
    326,137.20x = 72,640,402,868.88
  5. Step 5: Solve for x
    x = 72,640,402,868.88/326,137.20
  6. Step 6: Final answer
    x = 222,729.58

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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.