Home / 278,101.86-383,778.30-157,266.90

Finding the Fourth Proportional to 278,101.86, 383,778.30 and 157,266.90

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Solution

The fourth proportional to 278,101.86, 383,778.30 and 157,266.90 is: 217,027.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,101.86 : 383,778.30 = 157,266.90 : x
  2. Step 2: Convert to fraction form
    278,101.86/383,778.30 = 157,266.90/x
  3. Step 3: Cross multiply
    278,101.86x = 383,778.30 × 157,266.90
  4. Step 4: Simplify right side
    278,101.86x = 60,355,623,528.27
  5. Step 5: Solve for x
    x = 60,355,623,528.27/278,101.86
  6. Step 6: Final answer
    x = 217,027.04

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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.