Home / 220,981.20-331,644.60-102,667.20

Finding the Fourth Proportional to 220,981.20, 331,644.60 and 102,667.20

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Solution

The fourth proportional to 220,981.20, 331,644.60 and 102,667.20 is: 154,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,981.20 : 331,644.60 = 102,667.20 : x
  2. Step 2: Convert to fraction form
    220,981.20/331,644.60 = 102,667.20/x
  3. Step 3: Cross multiply
    220,981.20x = 331,644.60 × 102,667.20
  4. Step 4: Simplify right side
    220,981.20x = 34,049,022,477.12
  5. Step 5: Solve for x
    x = 34,049,022,477.12/220,981.20
  6. Step 6: Final answer
    x = 154,081.08

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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.