Home / 275,139.10-379,771.91-178,340.05

Finding the Fourth Proportional to 275,139.10, 379,771.91 and 178,340.05

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Solution

The fourth proportional to 275,139.10, 379,771.91 and 178,340.05 is: 246,161.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,139.10 : 379,771.91 = 178,340.05 : x
  2. Step 2: Convert to fraction form
    275,139.10/379,771.91 = 178,340.05/x
  3. Step 3: Cross multiply
    275,139.10x = 379,771.91 × 178,340.05
  4. Step 4: Simplify right side
    275,139.10x = 67,728,541,418.00
  5. Step 5: Solve for x
    x = 67,728,541,418.00/275,139.10
  6. Step 6: Final answer
    x = 246,161.09

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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.