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Finding the Fourth Proportional to 222,720.80, 334,035.84 and 82,446.08

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Solution

The fourth proportional to 222,720.80, 334,035.84 and 82,446.08 is: 123,652.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,720.80 : 334,035.84 = 82,446.08 : x
  2. Step 2: Convert to fraction form
    222,720.80/334,035.84 = 82,446.08/x
  3. Step 3: Cross multiply
    222,720.80x = 334,035.84 × 82,446.08
  4. Step 4: Simplify right side
    222,720.80x = 27,539,945,587.51
  5. Step 5: Solve for x
    x = 27,539,945,587.51/222,720.80
  6. Step 6: Final answer
    x = 123,652.33

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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.