Home / 221,738.40-332,738.72-81,595.36

Finding the Fourth Proportional to 221,738.40, 332,738.72 and 81,595.36

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Solution

The fourth proportional to 221,738.40, 332,738.72 and 81,595.36 is: 122,441.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,738.40 : 332,738.72 = 81,595.36 : x
  2. Step 2: Convert to fraction form
    221,738.40/332,738.72 = 81,595.36/x
  3. Step 3: Cross multiply
    221,738.40x = 332,738.72 × 81,595.36
  4. Step 4: Simplify right side
    221,738.40x = 27,149,935,644.34
  5. Step 5: Solve for x
    x = 27,149,935,644.34/221,738.40
  6. Step 6: Final answer
    x = 122,441.29

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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.