Home / 221,005.56-331,529.94-71,248.44

Finding the Fourth Proportional to 221,005.56, 331,529.94 and 71,248.44

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Solution

The fourth proportional to 221,005.56, 331,529.94 and 71,248.44 is: 106,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,005.56 : 331,529.94 = 71,248.44 : x
  2. Step 2: Convert to fraction form
    221,005.56/331,529.94 = 71,248.44/x
  3. Step 3: Cross multiply
    221,005.56x = 331,529.94 × 71,248.44
  4. Step 4: Simplify right side
    221,005.56x = 23,620,991,038.29
  5. Step 5: Solve for x
    x = 23,620,991,038.29/221,005.56
  6. Step 6: Final answer
    x = 106,879.62

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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.