Home / 209,826.80-313,972.20-154,530.80

Finding the Fourth Proportional to 209,826.80, 313,972.20 and 154,530.80

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Solution

The fourth proportional to 209,826.80, 313,972.20 and 154,530.80 is: 231,230.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,826.80 : 313,972.20 = 154,530.80 : x
  2. Step 2: Convert to fraction form
    209,826.80/313,972.20 = 154,530.80/x
  3. Step 3: Cross multiply
    209,826.80x = 313,972.20 × 154,530.80
  4. Step 4: Simplify right side
    209,826.80x = 48,518,375,243.76
  5. Step 5: Solve for x
    x = 48,518,375,243.76/209,826.80
  6. Step 6: Final answer
    x = 231,230.59

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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.