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Finding the Fourth Proportional to 221,763.48, 306,033.72 and 119,788.94

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Solution

The fourth proportional to 221,763.48, 306,033.72 and 119,788.94 is: 165,308.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,763.48 : 306,033.72 = 119,788.94 : x
  2. Step 2: Convert to fraction form
    221,763.48/306,033.72 = 119,788.94/x
  3. Step 3: Cross multiply
    221,763.48x = 306,033.72 × 119,788.94
  4. Step 4: Simplify right side
    221,763.48x = 36,659,452,793.94
  5. Step 5: Solve for x
    x = 36,659,452,793.94/221,763.48
  6. Step 6: Final answer
    x = 165,308.79

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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.