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Finding the Fourth Proportional to 222,778.70, 334,168.05 and 128,300.30

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Solution

The fourth proportional to 222,778.70, 334,168.05 and 128,300.30 is: 192,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,778.70 : 334,168.05 = 128,300.30 : x
  2. Step 2: Convert to fraction form
    222,778.70/334,168.05 = 128,300.30/x
  3. Step 3: Cross multiply
    222,778.70x = 334,168.05 × 128,300.30
  4. Step 4: Simplify right side
    222,778.70x = 42,873,861,065.42
  5. Step 5: Solve for x
    x = 42,873,861,065.42/222,778.70
  6. Step 6: Final answer
    x = 192,450.45

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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.