Home / 279,315.97-385,844.82-268,946.39

Finding the Fourth Proportional to 279,315.97, 385,844.82 and 268,946.39

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Solution

The fourth proportional to 279,315.97, 385,844.82 and 268,946.39 is: 371,520.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,315.97 : 385,844.82 = 268,946.39 : x
  2. Step 2: Convert to fraction form
    279,315.97/385,844.82 = 268,946.39/x
  3. Step 3: Cross multiply
    279,315.97x = 385,844.82 × 268,946.39
  4. Step 4: Simplify right side
    279,315.97x = 103,771,571,439.20
  5. Step 5: Solve for x
    x = 103,771,571,439.20/279,315.97
  6. Step 6: Final answer
    x = 371,520.37

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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.