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Finding the Fourth Proportional to 207,692.80, 311,550.24 and 67,441.12

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Solution

The fourth proportional to 207,692.80, 311,550.24 and 67,441.12 is: 101,165.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,692.80 : 311,550.24 = 67,441.12 : x
  2. Step 2: Convert to fraction form
    207,692.80/311,550.24 = 67,441.12/x
  3. Step 3: Cross multiply
    207,692.80x = 311,550.24 × 67,441.12
  4. Step 4: Simplify right side
    207,692.80x = 21,011,297,121.87
  5. Step 5: Solve for x
    x = 21,011,297,121.87/207,692.80
  6. Step 6: Final answer
    x = 101,165.26

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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.