Home / 278,100.92-383,755.64-157,225.44

Finding the Fourth Proportional to 278,100.92, 383,755.64 and 157,225.44

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Solution

The fourth proportional to 278,100.92, 383,755.64 and 157,225.44 is: 216,957.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,100.92 : 383,755.64 = 157,225.44 : x
  2. Step 2: Convert to fraction form
    278,100.92/383,755.64 = 157,225.44/x
  3. Step 3: Cross multiply
    278,100.92x = 383,755.64 × 157,225.44
  4. Step 4: Simplify right side
    278,100.92x = 60,336,149,351.48
  5. Step 5: Solve for x
    x = 60,336,149,351.48/278,100.92
  6. Step 6: Final answer
    x = 216,957.75

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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.