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Finding the Fourth Proportional to 222,403.70, 333,605.55 and 211,517.30

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Solution

The fourth proportional to 222,403.70, 333,605.55 and 211,517.30 is: 317,275.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,403.70 : 333,605.55 = 211,517.30 : x
  2. Step 2: Convert to fraction form
    222,403.70/333,605.55 = 211,517.30/x
  3. Step 3: Cross multiply
    222,403.70x = 333,605.55 × 211,517.30
  4. Step 4: Simplify right side
    222,403.70x = 70,563,345,201.02
  5. Step 5: Solve for x
    x = 70,563,345,201.02/222,403.70
  6. Step 6: Final answer
    x = 317,275.95

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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.