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Finding the Fourth Proportional to 208,845, 313,320.96 and 68,604.84

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Solution

The fourth proportional to 208,845, 313,320.96 and 68,604.84 is: 102,924.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,845 : 313,320.96 = 68,604.84 : x
  2. Step 2: Convert to fraction form
    208,845/313,320.96 = 68,604.84/x
  3. Step 3: Cross multiply
    208,845x = 313,320.96 × 68,604.84
  4. Step 4: Simplify right side
    208,845x = 21,495,334,329.45
  5. Step 5: Solve for x
    x = 21,495,334,329.45/208,845
  6. Step 6: Final answer
    x = 102,924.82

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1.5x scale

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.