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Finding the Fourth Proportional to 275,871.24, 380,690.16 and 161,160.51

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Solution

The fourth proportional to 275,871.24, 380,690.16 and 161,160.51 is: 222,394.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,871.24 : 380,690.16 = 161,160.51 : x
  2. Step 2: Convert to fraction form
    275,871.24/380,690.16 = 161,160.51/x
  3. Step 3: Cross multiply
    275,871.24x = 380,690.16 × 161,160.51
  4. Step 4: Simplify right side
    275,871.24x = 61,352,220,337.58
  5. Step 5: Solve for x
    x = 61,352,220,337.58/275,871.24
  6. Step 6: Final answer
    x = 222,394.41

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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.