Home / 259,719.30-389,702.31-179,880.13

Finding the Fourth Proportional to 259,719.30, 389,702.31 and 179,880.13

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Solution

The fourth proportional to 259,719.30, 389,702.31 and 179,880.13 is: 269,905.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,719.30 : 389,702.31 = 179,880.13 : x
  2. Step 2: Convert to fraction form
    259,719.30/389,702.31 = 179,880.13/x
  3. Step 3: Cross multiply
    259,719.30x = 389,702.31 × 179,880.13
  4. Step 4: Simplify right side
    259,719.30x = 70,099,701,996.68
  5. Step 5: Solve for x
    x = 70,099,701,996.68/259,719.30
  6. Step 6: Final answer
    x = 269,905.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.