Home / 222,438.30-306,986.85-126,959.37

Finding the Fourth Proportional to 222,438.30, 306,986.85 and 126,959.37

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Solution

The fourth proportional to 222,438.30, 306,986.85 and 126,959.37 is: 175,216.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,438.30 : 306,986.85 = 126,959.37 : x
  2. Step 2: Convert to fraction form
    222,438.30/306,986.85 = 126,959.37/x
  3. Step 3: Cross multiply
    222,438.30x = 306,986.85 × 126,959.37
  4. Step 4: Simplify right side
    222,438.30x = 38,974,857,074.28
  5. Step 5: Solve for x
    x = 38,974,857,074.28/222,438.30
  6. Step 6: Final answer
    x = 175,216.49

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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.