Home / 281,954.07-389,060.76-161,103.18

Finding the Fourth Proportional to 281,954.07, 389,060.76 and 161,103.18

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Solution

The fourth proportional to 281,954.07, 389,060.76 and 161,103.18 is: 222,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,954.07 : 389,060.76 = 161,103.18 : x
  2. Step 2: Convert to fraction form
    281,954.07/389,060.76 = 161,103.18/x
  3. Step 3: Cross multiply
    281,954.07x = 389,060.76 × 161,103.18
  4. Step 4: Simplify right side
    281,954.07x = 62,678,925,649.22
  5. Step 5: Solve for x
    x = 62,678,925,649.22/281,954.07
  6. Step 6: Final answer
    x = 222,301.90

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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.