Home / 274,617.88-378,939.42-153,749.68

Finding the Fourth Proportional to 274,617.88, 378,939.42 and 153,749.68

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Solution

The fourth proportional to 274,617.88, 378,939.42 and 153,749.68 is: 212,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,617.88 : 378,939.42 = 153,749.68 : x
  2. Step 2: Convert to fraction form
    274,617.88/378,939.42 = 153,749.68/x
  3. Step 3: Cross multiply
    274,617.88x = 378,939.42 × 153,749.68
  4. Step 4: Simplify right side
    274,617.88x = 58,261,814,564.39
  5. Step 5: Solve for x
    x = 58,261,814,564.39/274,617.88
  6. Step 6: Final answer
    x = 212,155.94

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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.