Home / 245,023.73-338,132.78-137,593.84

Finding the Fourth Proportional to 245,023.73, 338,132.78 and 137,593.84

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Solution

The fourth proportional to 245,023.73, 338,132.78 and 137,593.84 is: 189,879.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,023.73 : 338,132.78 = 137,593.84 : x
  2. Step 2: Convert to fraction form
    245,023.73/338,132.78 = 137,593.84/x
  3. Step 3: Cross multiply
    245,023.73x = 338,132.78 × 137,593.84
  4. Step 4: Simplify right side
    245,023.73x = 46,524,987,246.75
  5. Step 5: Solve for x
    x = 46,524,987,246.75/245,023.73
  6. Step 6: Final answer
    x = 189,879.51

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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.