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Finding the Fourth Proportional to 250,119.68, 345,151.36 and 136,920.48

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Solution

The fourth proportional to 250,119.68, 345,151.36 and 136,920.48 is: 188,942.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,119.68 : 345,151.36 = 136,920.48 : x
  2. Step 2: Convert to fraction form
    250,119.68/345,151.36 = 136,920.48/x
  3. Step 3: Cross multiply
    250,119.68x = 345,151.36 × 136,920.48
  4. Step 4: Simplify right side
    250,119.68x = 47,258,289,883.85
  5. Step 5: Solve for x
    x = 47,258,289,883.85/250,119.68
  6. Step 6: Final answer
    x = 188,942.71

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1.5x scale

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.