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Finding the Fourth Proportional to 222,418.20, 333,651.60 and 215,419.80

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Solution

The fourth proportional to 222,418.20, 333,651.60 and 215,419.80 is: 323,153.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,418.20 : 333,651.60 = 215,419.80 : x
  2. Step 2: Convert to fraction form
    222,418.20/333,651.60 = 215,419.80/x
  3. Step 3: Cross multiply
    222,418.20x = 333,651.60 × 215,419.80
  4. Step 4: Simplify right side
    222,418.20x = 71,875,160,941.68
  5. Step 5: Solve for x
    x = 71,875,160,941.68/222,418.20
  6. Step 6: Final answer
    x = 323,153.24

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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.