Home / 221,782.46-306,059.49-126,289.15

Finding the Fourth Proportional to 221,782.46, 306,059.49 and 126,289.15

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Solution

The fourth proportional to 221,782.46, 306,059.49 and 126,289.15 is: 174,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,782.46 : 306,059.49 = 126,289.15 : x
  2. Step 2: Convert to fraction form
    221,782.46/306,059.49 = 126,289.15/x
  3. Step 3: Cross multiply
    221,782.46x = 306,059.49 × 126,289.15
  4. Step 4: Simplify right side
    221,782.46x = 38,651,992,581.99
  5. Step 5: Solve for x
    x = 38,651,992,581.99/221,782.46
  6. Step 6: Final answer
    x = 174,278.86

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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.