Home / 278,222.46-383,944.20-157,387.32

Finding the Fourth Proportional to 278,222.46, 383,944.20 and 157,387.32

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Solution

The fourth proportional to 278,222.46, 383,944.20 and 157,387.32 is: 217,192.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,222.46 : 383,944.20 = 157,387.32 : x
  2. Step 2: Convert to fraction form
    278,222.46/383,944.20 = 157,387.32/x
  3. Step 3: Cross multiply
    278,222.46x = 383,944.20 × 157,387.32
  4. Step 4: Simplify right side
    278,222.46x = 60,427,948,667.54
  5. Step 5: Solve for x
    x = 60,427,948,667.54/278,222.46
  6. Step 6: Final answer
    x = 217,192.92

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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.