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Finding the Fourth Proportional to 221,009.33, 331,745.90 and 195,869.70

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Solution

The fourth proportional to 221,009.33, 331,745.90 and 195,869.70 is: 294,010.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,009.33 : 331,745.90 = 195,869.70 : x
  2. Step 2: Convert to fraction form
    221,009.33/331,745.90 = 195,869.70/x
  3. Step 3: Cross multiply
    221,009.33x = 331,745.90 × 195,869.70
  4. Step 4: Simplify right side
    221,009.33x = 64,978,968,929.88
  5. Step 5: Solve for x
    x = 64,978,968,929.88/221,009.33
  6. Step 6: Final answer
    x = 294,010.07

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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.