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Finding the Fourth Proportional to 223,891.21, 335,860.36 and 129,119.24

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Solution

The fourth proportional to 223,891.21, 335,860.36 and 129,119.24 is: 193,692.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,891.21 : 335,860.36 = 129,119.24 : x
  2. Step 2: Convert to fraction form
    223,891.21/335,860.36 = 129,119.24/x
  3. Step 3: Cross multiply
    223,891.21x = 335,860.36 × 129,119.24
  4. Step 4: Simplify right side
    223,891.21x = 43,366,034,946.18
  5. Step 5: Solve for x
    x = 43,366,034,946.18/223,891.21
  6. Step 6: Final answer
    x = 193,692.44

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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.