Home / 273,986.75-378,076.41-153,111.26

Finding the Fourth Proportional to 273,986.75, 378,076.41 and 153,111.26

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Solution

The fourth proportional to 273,986.75, 378,076.41 and 153,111.26 is: 211,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,986.75 : 378,076.41 = 153,111.26 : x
  2. Step 2: Convert to fraction form
    273,986.75/378,076.41 = 153,111.26/x
  3. Step 3: Cross multiply
    273,986.75x = 378,076.41 × 153,111.26
  4. Step 4: Simplify right side
    273,986.75x = 57,887,756,456.57
  5. Step 5: Solve for x
    x = 57,887,756,456.57/273,986.75
  6. Step 6: Final answer
    x = 211,279.40

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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.