Home / 278,105.85-383,793.63-157,265.22

Finding the Fourth Proportional to 278,105.85, 383,793.63 and 157,265.22

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Solution

The fourth proportional to 278,105.85, 383,793.63 and 157,265.22 is: 217,030.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,105.85 : 383,793.63 = 157,265.22 : x
  2. Step 2: Convert to fraction form
    278,105.85/383,793.63 = 157,265.22/x
  3. Step 3: Cross multiply
    278,105.85x = 383,793.63 × 157,265.22
  4. Step 4: Simplify right side
    278,105.85x = 60,357,387,737.58
  5. Step 5: Solve for x
    x = 60,357,387,737.58/278,105.85
  6. Step 6: Final answer
    x = 217,030.27

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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.