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Finding the Fourth Proportional to 208,997.97, 288,415.94 and 113,503.83

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Solution

The fourth proportional to 208,997.97, 288,415.94 and 113,503.83 is: 156,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,997.97 : 288,415.94 = 113,503.83 : x
  2. Step 2: Convert to fraction form
    208,997.97/288,415.94 = 113,503.83/x
  3. Step 3: Cross multiply
    208,997.97x = 288,415.94 × 113,503.83
  4. Step 4: Simplify right side
    208,997.97x = 32,736,313,255.53
  5. Step 5: Solve for x
    x = 32,736,313,255.53/208,997.97
  6. Step 6: Final answer
    x = 156,634.60

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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.