Home / 351,558.28-485,180.25-198,624.56

Finding the Fourth Proportional to 351,558.28, 485,180.25 and 198,624.56

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Solution

The fourth proportional to 351,558.28, 485,180.25 and 198,624.56 is: 274,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,558.28 : 485,180.25 = 198,624.56 : x
  2. Step 2: Convert to fraction form
    351,558.28/485,180.25 = 198,624.56/x
  3. Step 3: Cross multiply
    351,558.28x = 485,180.25 × 198,624.56
  4. Step 4: Simplify right side
    351,558.28x = 96,368,712,182.09
  5. Step 5: Solve for x
    x = 96,368,712,182.09/351,558.28
  6. Step 6: Final answer
    x = 274,118.74

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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.