Home / 221,005.20-331,289.10-108,593.40

Finding the Fourth Proportional to 221,005.20, 331,289.10 and 108,593.40

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Solution

The fourth proportional to 221,005.20, 331,289.10 and 108,593.40 is: 162,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,005.20 : 331,289.10 = 108,593.40 : x
  2. Step 2: Convert to fraction form
    221,005.20/331,289.10 = 108,593.40/x
  3. Step 3: Cross multiply
    221,005.20x = 331,289.10 × 108,593.40
  4. Step 4: Simplify right side
    221,005.20x = 35,975,809,751.94
  5. Step 5: Solve for x
    x = 35,975,809,751.94/221,005.20
  6. Step 6: Final answer
    x = 162,782.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.