Home / 278,078.91-383,789.81-176,113.85

Finding the Fourth Proportional to 278,078.91, 383,789.81 and 176,113.85

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Solution

The fourth proportional to 278,078.91, 383,789.81 and 176,113.85 is: 243,063.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,078.91 : 383,789.81 = 176,113.85 : x
  2. Step 2: Convert to fraction form
    278,078.91/383,789.81 = 176,113.85/x
  3. Step 3: Cross multiply
    278,078.91x = 383,789.81 × 176,113.85
  4. Step 4: Simplify right side
    278,078.91x = 67,590,699,551.20
  5. Step 5: Solve for x
    x = 67,590,699,551.20/278,078.91
  6. Step 6: Final answer
    x = 243,063.02

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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.