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Finding the Fourth Proportional to 222,405.20, 333,607.80 and 206,853.20

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Solution

The fourth proportional to 222,405.20, 333,607.80 and 206,853.20 is: 310,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,405.20 : 333,607.80 = 206,853.20 : x
  2. Step 2: Convert to fraction form
    222,405.20/333,607.80 = 206,853.20/x
  3. Step 3: Cross multiply
    222,405.20x = 333,607.80 × 206,853.20
  4. Step 4: Simplify right side
    222,405.20x = 69,007,840,974.96
  5. Step 5: Solve for x
    x = 69,007,840,974.96/222,405.20
  6. Step 6: Final answer
    x = 310,279.80

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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.