Home / 221,035.20-331,334.10-108,623.40

Finding the Fourth Proportional to 221,035.20, 331,334.10 and 108,623.40

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Solution

The fourth proportional to 221,035.20, 331,334.10 and 108,623.40 is: 162,827.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,035.20 : 331,334.10 = 108,623.40 : x
  2. Step 2: Convert to fraction form
    221,035.20/331,334.10 = 108,623.40/x
  3. Step 3: Cross multiply
    221,035.20x = 331,334.10 × 108,623.40
  4. Step 4: Simplify right side
    221,035.20x = 35,990,636,477.94
  5. Step 5: Solve for x
    x = 35,990,636,477.94/221,035.20
  6. Step 6: Final answer
    x = 162,827.62

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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.