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Finding the Fourth Proportional to 222,729.20, 334,093.80 and 128,250.80

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Solution

The fourth proportional to 222,729.20, 334,093.80 and 128,250.80 is: 192,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,729.20 : 334,093.80 = 128,250.80 : x
  2. Step 2: Convert to fraction form
    222,729.20/334,093.80 = 128,250.80/x
  3. Step 3: Cross multiply
    222,729.20x = 334,093.80 × 128,250.80
  4. Step 4: Simplify right side
    222,729.20x = 42,847,797,125.04
  5. Step 5: Solve for x
    x = 42,847,797,125.04/222,729.20
  6. Step 6: Final answer
    x = 192,376.20

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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.