Home / 371,921.70-557,882.55-259,947.30

Finding the Fourth Proportional to 371,921.70, 557,882.55 and 259,947.30

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Solution

The fourth proportional to 371,921.70, 557,882.55 and 259,947.30 is: 389,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,921.70 : 557,882.55 = 259,947.30 : x
  2. Step 2: Convert to fraction form
    371,921.70/557,882.55 = 259,947.30/x
  3. Step 3: Cross multiply
    371,921.70x = 557,882.55 × 259,947.30
  4. Step 4: Simplify right side
    371,921.70x = 145,020,062,589.62
  5. Step 5: Solve for x
    x = 145,020,062,589.62/371,921.70
  6. Step 6: Final answer
    x = 389,920.95

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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.