Home / 272,249.90-408,373.94-69,845.78

Finding the Fourth Proportional to 272,249.90, 408,373.94 and 69,845.78

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Solution

The fourth proportional to 272,249.90, 408,373.94 and 69,845.78 is: 104,768.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,249.90 : 408,373.94 = 69,845.78 : x
  2. Step 2: Convert to fraction form
    272,249.90/408,373.94 = 69,845.78/x
  3. Step 3: Cross multiply
    272,249.90x = 408,373.94 × 69,845.78
  4. Step 4: Simplify right side
    272,249.90x = 28,523,196,370.97
  5. Step 5: Solve for x
    x = 28,523,196,370.97/272,249.90
  6. Step 6: Final answer
    x = 104,768.44

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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.