Home / 280,086.32-386,517.29-159,227.63

Finding the Fourth Proportional to 280,086.32, 386,517.29 and 159,227.63

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Solution

The fourth proportional to 280,086.32, 386,517.29 and 159,227.63 is: 219,733.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,086.32 : 386,517.29 = 159,227.63 : x
  2. Step 2: Convert to fraction form
    280,086.32/386,517.29 = 159,227.63/x
  3. Step 3: Cross multiply
    280,086.32x = 386,517.29 × 159,227.63
  4. Step 4: Simplify right side
    280,086.32x = 61,544,233,405.09
  5. Step 5: Solve for x
    x = 61,544,233,405.09/280,086.32
  6. Step 6: Final answer
    x = 219,733.10

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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.