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Finding the Fourth Proportional to 100,340.79, 150,519.38 and 50,395.20

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Solution

The fourth proportional to 100,340.79, 150,519.38 and 50,395.20 is: 75,596.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,340.79 : 150,519.38 = 50,395.20 : x
  2. Step 2: Convert to fraction form
    100,340.79/150,519.38 = 50,395.20/x
  3. Step 3: Cross multiply
    100,340.79x = 150,519.38 × 50,395.20
  4. Step 4: Simplify right side
    100,340.79x = 7,585,454,258.98
  5. Step 5: Solve for x
    x = 7,585,454,258.98/100,340.79
  6. Step 6: Final answer
    x = 75,596.92

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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.