Home / 387,359.73-579,789.68-200,113.65

Finding the Fourth Proportional to 387,359.73, 579,789.68 and 200,113.65

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Solution

The fourth proportional to 387,359.73, 579,789.68 and 200,113.65 is: 299,524.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,359.73 : 579,789.68 = 200,113.65 : x
  2. Step 2: Convert to fraction form
    387,359.73/579,789.68 = 200,113.65/x
  3. Step 3: Cross multiply
    387,359.73x = 579,789.68 × 200,113.65
  4. Step 4: Simplify right side
    387,359.73x = 116,023,828,096.56
  5. Step 5: Solve for x
    x = 116,023,828,096.56/387,359.73
  6. Step 6: Final answer
    x = 299,524.75

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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.