Home / 278,732.28-384,704.46-181,767.78

Finding the Fourth Proportional to 278,732.28, 384,704.46 and 181,767.78

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Solution

The fourth proportional to 278,732.28, 384,704.46 and 181,767.78 is: 250,874.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,732.28 : 384,704.46 = 181,767.78 : x
  2. Step 2: Convert to fraction form
    278,732.28/384,704.46 = 181,767.78/x
  3. Step 3: Cross multiply
    278,732.28x = 384,704.46 × 181,767.78
  4. Step 4: Simplify right side
    278,732.28x = 69,926,875,650.30
  5. Step 5: Solve for x
    x = 69,926,875,650.30/278,732.28
  6. Step 6: Final answer
    x = 250,874.69

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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.