Home / 278,481.38-384,304.77-151,156.97

Finding the Fourth Proportional to 278,481.38, 384,304.77 and 151,156.97

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Solution

The fourth proportional to 278,481.38, 384,304.77 and 151,156.97 is: 208,596.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,481.38 : 384,304.77 = 151,156.97 : x
  2. Step 2: Convert to fraction form
    278,481.38/384,304.77 = 151,156.97/x
  3. Step 3: Cross multiply
    278,481.38x = 384,304.77 × 151,156.97
  4. Step 4: Simplify right side
    278,481.38x = 58,090,344,109.37
  5. Step 5: Solve for x
    x = 58,090,344,109.37/278,481.38
  6. Step 6: Final answer
    x = 208,596.87

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1.5x scale

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.