Home / 281,942.15-389,044.31-161,091.26

Finding the Fourth Proportional to 281,942.15, 389,044.31 and 161,091.26

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Solution

The fourth proportional to 281,942.15, 389,044.31 and 161,091.26 is: 222,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,942.15 : 389,044.31 = 161,091.26 : x
  2. Step 2: Convert to fraction form
    281,942.15/389,044.31 = 161,091.26/x
  3. Step 3: Cross multiply
    281,942.15x = 389,044.31 × 161,091.26
  4. Step 4: Simplify right side
    281,942.15x = 62,671,638,093.73
  5. Step 5: Solve for x
    x = 62,671,638,093.73/281,942.15
  6. Step 6: Final answer
    x = 222,285.45

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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.