Home / 200,348.86-276,469.20-109,705.90

Finding the Fourth Proportional to 200,348.86, 276,469.20 and 109,705.90

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Solution

The fourth proportional to 200,348.86, 276,469.20 and 109,705.90 is: 151,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,348.86 : 276,469.20 = 109,705.90 : x
  2. Step 2: Convert to fraction form
    200,348.86/276,469.20 = 109,705.90/x
  3. Step 3: Cross multiply
    200,348.86x = 276,469.20 × 109,705.90
  4. Step 4: Simplify right side
    200,348.86x = 30,330,302,408.28
  5. Step 5: Solve for x
    x = 30,330,302,408.28/200,348.86
  6. Step 6: Final answer
    x = 151,387.45

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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.