Home / 278,077.46-383,766.56-157,219.89

Finding the Fourth Proportional to 278,077.46, 383,766.56 and 157,219.89

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Solution

The fourth proportional to 278,077.46, 383,766.56 and 157,219.89 is: 216,974.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,077.46 : 383,766.56 = 157,219.89 : x
  2. Step 2: Convert to fraction form
    278,077.46/383,766.56 = 157,219.89/x
  3. Step 3: Cross multiply
    278,077.46x = 383,766.56 × 157,219.89
  4. Step 4: Simplify right side
    278,077.46x = 60,335,734,713.23
  5. Step 5: Solve for x
    x = 60,335,734,713.23/278,077.46
  6. Step 6: Final answer
    x = 216,974.56

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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.