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Finding the Fourth Proportional to 222,414.20, 333,645.60 and 215,415.80

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Solution

The fourth proportional to 222,414.20, 333,645.60 and 215,415.80 is: 323,147.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,414.20 : 333,645.60 = 215,415.80 : x
  2. Step 2: Convert to fraction form
    222,414.20/333,645.60 = 215,415.80/x
  3. Step 3: Cross multiply
    222,414.20x = 333,645.60 × 215,415.80
  4. Step 4: Simplify right side
    222,414.20x = 71,872,533,840.48
  5. Step 5: Solve for x
    x = 71,872,533,840.48/222,414.20
  6. Step 6: Final answer
    x = 323,147.24

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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.