Home / 221,619.38-332,429.06-55,407.38

Finding the Fourth Proportional to 221,619.38, 332,429.06 and 55,407.38

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Solution

The fourth proportional to 221,619.38, 332,429.06 and 55,407.38 is: 83,111.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,619.38 : 332,429.06 = 55,407.38 : x
  2. Step 2: Convert to fraction form
    221,619.38/332,429.06 = 55,407.38/x
  3. Step 3: Cross multiply
    221,619.38x = 332,429.06 × 55,407.38
  4. Step 4: Simplify right side
    221,619.38x = 18,419,021,726.84
  5. Step 5: Solve for x
    x = 18,419,021,726.84/221,619.38
  6. Step 6: Final answer
    x = 83,111.06

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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.