Home / 227,928.88-314,410.32-137,221.84

Finding the Fourth Proportional to 227,928.88, 314,410.32 and 137,221.84

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Solution

The fourth proportional to 227,928.88, 314,410.32 and 137,221.84 is: 189,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,928.88 : 314,410.32 = 137,221.84 : x
  2. Step 2: Convert to fraction form
    227,928.88/314,410.32 = 137,221.84/x
  3. Step 3: Cross multiply
    227,928.88x = 314,410.32 × 137,221.84
  4. Step 4: Simplify right side
    227,928.88x = 43,143,962,625.39
  5. Step 5: Solve for x
    x = 43,143,962,625.39/227,928.88
  6. Step 6: Final answer
    x = 189,286.95

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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.