Home / 278,256.20-383,993.52-157,394.88

Finding the Fourth Proportional to 278,256.20, 383,993.52 and 157,394.88

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Solution

The fourth proportional to 278,256.20, 383,993.52 and 157,394.88 is: 217,204.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,256.20 : 383,993.52 = 157,394.88 : x
  2. Step 2: Convert to fraction form
    278,256.20/383,993.52 = 157,394.88/x
  3. Step 3: Cross multiply
    278,256.20x = 383,993.52 × 157,394.88
  4. Step 4: Simplify right side
    278,256.20x = 60,438,614,001.18
  5. Step 5: Solve for x
    x = 60,438,614,001.18/278,256.20
  6. Step 6: Final answer
    x = 217,204.91

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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.