Home / 281,136.28-387,929.78-167,935

Finding the Fourth Proportional to 281,136.28, 387,929.78 and 167,935

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Solution

The fourth proportional to 281,136.28, 387,929.78 and 167,935 is: 231,727.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,136.28 : 387,929.78 = 167,935 : x
  2. Step 2: Convert to fraction form
    281,136.28/387,929.78 = 167,935/x
  3. Step 3: Cross multiply
    281,136.28x = 387,929.78 × 167,935
  4. Step 4: Simplify right side
    281,136.28x = 65,146,987,604.30
  5. Step 5: Solve for x
    x = 65,146,987,604.30/281,136.28
  6. Step 6: Final answer
    x = 231,727.43

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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.