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Finding the Fourth Proportional to 275,822.82, 380,640.48 and 153,326.66

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Solution

The fourth proportional to 275,822.82, 380,640.48 and 153,326.66 is: 211,593.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,822.82 : 380,640.48 = 153,326.66 : x
  2. Step 2: Convert to fraction form
    275,822.82/380,640.48 = 153,326.66/x
  3. Step 3: Cross multiply
    275,822.82x = 380,640.48 × 153,326.66
  4. Step 4: Simplify right side
    275,822.82x = 58,362,331,555.99
  5. Step 5: Solve for x
    x = 58,362,331,555.99/275,822.82
  6. Step 6: Final answer
    x = 211,593.56

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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.