Home / 280,183.41-386,685.36-156,016.89

Finding the Fourth Proportional to 280,183.41, 386,685.36 and 156,016.89

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Solution

The fourth proportional to 280,183.41, 386,685.36 and 156,016.89 is: 215,321.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,183.41 : 386,685.36 = 156,016.89 : x
  2. Step 2: Convert to fraction form
    280,183.41/386,685.36 = 156,016.89/x
  3. Step 3: Cross multiply
    280,183.41x = 386,685.36 × 156,016.89
  4. Step 4: Simplify right side
    280,183.41x = 60,329,447,275.73
  5. Step 5: Solve for x
    x = 60,329,447,275.73/280,183.41
  6. Step 6: Final answer
    x = 215,321.27

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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.