Home / 280,119.27-386,538.61-159,236.95

Finding the Fourth Proportional to 280,119.27, 386,538.61 and 159,236.95

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Solution

The fourth proportional to 280,119.27, 386,538.61 and 159,236.95 is: 219,732.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,119.27 : 386,538.61 = 159,236.95 : x
  2. Step 2: Convert to fraction form
    280,119.27/386,538.61 = 159,236.95/x
  3. Step 3: Cross multiply
    280,119.27x = 386,538.61 × 159,236.95
  4. Step 4: Simplify right side
    280,119.27x = 61,551,229,313.64
  5. Step 5: Solve for x
    x = 61,551,229,313.64/280,119.27
  6. Step 6: Final answer
    x = 219,732.22

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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.