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Finding the Fourth Proportional to 222,110.80, 306,509 and 136,056.40

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Solution

The fourth proportional to 222,110.80, 306,509 and 136,056.40 is: 187,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,110.80 : 306,509 = 136,056.40 : x
  2. Step 2: Convert to fraction form
    222,110.80/306,509 = 136,056.40/x
  3. Step 3: Cross multiply
    222,110.80x = 306,509 × 136,056.40
  4. Step 4: Simplify right side
    222,110.80x = 41,702,511,107.60
  5. Step 5: Solve for x
    x = 41,702,511,107.60/222,110.80
  6. Step 6: Final answer
    x = 187,755.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.