Home / 354,559.20-489,370.60-225,471.52

Finding the Fourth Proportional to 354,559.20, 489,370.60 and 225,471.52

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Solution

The fourth proportional to 354,559.20, 489,370.60 and 225,471.52 is: 311,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,559.20 : 489,370.60 = 225,471.52 : x
  2. Step 2: Convert to fraction form
    354,559.20/489,370.60 = 225,471.52/x
  3. Step 3: Cross multiply
    354,559.20x = 489,370.60 × 225,471.52
  4. Step 4: Simplify right side
    354,559.20x = 110,339,133,025.31
  5. Step 5: Solve for x
    x = 110,339,133,025.31/354,559.20
  6. Step 6: Final answer
    x = 311,200.87

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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.