Home / 279,044.20-385,076.46-151,723

Finding the Fourth Proportional to 279,044.20, 385,076.46 and 151,723

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Solution

The fourth proportional to 279,044.20, 385,076.46 and 151,723 is: 209,375.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,044.20 : 385,076.46 = 151,723 : x
  2. Step 2: Convert to fraction form
    279,044.20/385,076.46 = 151,723/x
  3. Step 3: Cross multiply
    279,044.20x = 385,076.46 × 151,723
  4. Step 4: Simplify right side
    279,044.20x = 58,424,955,740.58
  5. Step 5: Solve for x
    x = 58,424,955,740.58/279,044.20
  6. Step 6: Final answer
    x = 209,375.27

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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.