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Finding the Fourth Proportional to 221,277.56, 331,917.54 and 55,065.56

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Solution

The fourth proportional to 221,277.56, 331,917.54 and 55,065.56 is: 82,598.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,277.56 : 331,917.54 = 55,065.56 : x
  2. Step 2: Convert to fraction form
    221,277.56/331,917.54 = 55,065.56/x
  3. Step 3: Cross multiply
    221,277.56x = 331,917.54 × 55,065.56
  4. Step 4: Simplify right side
    221,277.56x = 18,277,225,213.92
  5. Step 5: Solve for x
    x = 18,277,225,213.92/221,277.56
  6. Step 6: Final answer
    x = 82,598.64

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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.