Home / 280,408.09-386,952.24-153,084.73

Finding the Fourth Proportional to 280,408.09, 386,952.24 and 153,084.73

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Solution

The fourth proportional to 280,408.09, 386,952.24 and 153,084.73 is: 211,250.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,408.09 : 386,952.24 = 153,084.73 : x
  2. Step 2: Convert to fraction form
    280,408.09/386,952.24 = 153,084.73/x
  3. Step 3: Cross multiply
    280,408.09x = 386,952.24 × 153,084.73
  4. Step 4: Simplify right side
    280,408.09x = 59,236,479,183.30
  5. Step 5: Solve for x
    x = 59,236,479,183.30/280,408.09
  6. Step 6: Final answer
    x = 211,250.96

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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.