Home / 225,629.42-338,088.09-83,278.76

Finding the Fourth Proportional to 225,629.42, 338,088.09 and 83,278.76

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Solution

The fourth proportional to 225,629.42, 338,088.09 and 83,278.76 is: 124,786.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,629.42 : 338,088.09 = 83,278.76 : x
  2. Step 2: Convert to fraction form
    225,629.42/338,088.09 = 83,278.76/x
  3. Step 3: Cross multiply
    225,629.42x = 338,088.09 × 83,278.76
  4. Step 4: Simplify right side
    225,629.42x = 28,155,556,905.97
  5. Step 5: Solve for x
    x = 28,155,556,905.97/225,629.42
  6. Step 6: Final answer
    x = 124,786.73

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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.