Home / 154,218.40-231,673.20-147,920.80

Finding the Fourth Proportional to 154,218.40, 231,673.20 and 147,920.80

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Solution

The fourth proportional to 154,218.40, 231,673.20 and 147,920.80 is: 222,212.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,218.40 : 231,673.20 = 147,920.80 : x
  2. Step 2: Convert to fraction form
    154,218.40/231,673.20 = 147,920.80/x
  3. Step 3: Cross multiply
    154,218.40x = 231,673.20 × 147,920.80
  4. Step 4: Simplify right side
    154,218.40x = 34,269,285,082.56
  5. Step 5: Solve for x
    x = 34,269,285,082.56/154,218.40
  6. Step 6: Final answer
    x = 222,212.69

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1.5x scale

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.