Home / 278,474.27-384,294.53-151,149.83

Finding the Fourth Proportional to 278,474.27, 384,294.53 and 151,149.83

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Solution

The fourth proportional to 278,474.27, 384,294.53 and 151,149.83 is: 208,586.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,474.27 : 384,294.53 = 151,149.83 : x
  2. Step 2: Convert to fraction form
    278,474.27/384,294.53 = 151,149.83/x
  3. Step 3: Cross multiply
    278,474.27x = 384,294.53 × 151,149.83
  4. Step 4: Simplify right side
    278,474.27x = 58,086,052,123.68
  5. Step 5: Solve for x
    x = 58,086,052,123.68/278,474.27
  6. Step 6: Final answer
    x = 208,586.78

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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.