Home / 387,198.09-580,709.52-147,226.41

Finding the Fourth Proportional to 387,198.09, 580,709.52 and 147,226.41

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Solution

The fourth proportional to 387,198.09, 580,709.52 and 147,226.41 is: 220,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,198.09 : 580,709.52 = 147,226.41 : x
  2. Step 2: Convert to fraction form
    387,198.09/580,709.52 = 147,226.41/x
  3. Step 3: Cross multiply
    387,198.09x = 580,709.52 × 147,226.41
  4. Step 4: Simplify right side
    387,198.09x = 85,495,777,882.42
  5. Step 5: Solve for x
    x = 85,495,777,882.42/387,198.09
  6. Step 6: Final answer
    x = 220,806.30

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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.