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Finding the Fourth Proportional to 222,786.70, 334,180.05 and 212,418.70

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Solution

The fourth proportional to 222,786.70, 334,180.05 and 212,418.70 is: 318,628.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,786.70 : 334,180.05 = 212,418.70 : x
  2. Step 2: Convert to fraction form
    222,786.70/334,180.05 = 212,418.70/x
  3. Step 3: Cross multiply
    222,786.70x = 334,180.05 × 212,418.70
  4. Step 4: Simplify right side
    222,786.70x = 70,986,091,786.94
  5. Step 5: Solve for x
    x = 70,986,091,786.94/222,786.70
  6. Step 6: Final answer
    x = 318,628.05

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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.