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Finding the Fourth Proportional to 222,419.20, 333,628.80 and 211,532.80

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Solution

The fourth proportional to 222,419.20, 333,628.80 and 211,532.80 is: 317,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,419.20 : 333,628.80 = 211,532.80 : x
  2. Step 2: Convert to fraction form
    222,419.20/333,628.80 = 211,532.80/x
  3. Step 3: Cross multiply
    222,419.20x = 333,628.80 × 211,532.80
  4. Step 4: Simplify right side
    222,419.20x = 70,573,434,224.64
  5. Step 5: Solve for x
    x = 70,573,434,224.64/222,419.20
  6. Step 6: Final answer
    x = 317,299.20

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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.