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Finding the Fourth Proportional to 208,991.44, 288,408.12 and 113,498.16

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Solution

The fourth proportional to 208,991.44, 288,408.12 and 113,498.16 is: 156,627.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,991.44 : 288,408.12 = 113,498.16 : x
  2. Step 2: Convert to fraction form
    208,991.44/288,408.12 = 113,498.16/x
  3. Step 3: Cross multiply
    208,991.44x = 288,408.12 × 113,498.16
  4. Step 4: Simplify right side
    208,991.44x = 32,733,790,949.06
  5. Step 5: Solve for x
    x = 32,733,790,949.06/208,991.44
  6. Step 6: Final answer
    x = 156,627.42

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1.5x scale

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.