Home / 274,111.74-378,390.78-166,716.27

Finding the Fourth Proportional to 274,111.74, 378,390.78 and 166,716.27

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Solution

The fourth proportional to 274,111.74, 378,390.78 and 166,716.27 is: 230,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,111.74 : 378,390.78 = 166,716.27 : x
  2. Step 2: Convert to fraction form
    274,111.74/378,390.78 = 166,716.27/x
  3. Step 3: Cross multiply
    274,111.74x = 378,390.78 × 166,716.27
  4. Step 4: Simplify right side
    274,111.74x = 63,083,899,443.99
  5. Step 5: Solve for x
    x = 63,083,899,443.99/274,111.74
  6. Step 6: Final answer
    x = 230,139.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.