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Finding the Fourth Proportional to 222,016.70, 333,028.20 and 72,257.78

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Solution

The fourth proportional to 222,016.70, 333,028.20 and 72,257.78 is: 108,387.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,016.70 : 333,028.20 = 72,257.78 : x
  2. Step 2: Convert to fraction form
    222,016.70/333,028.20 = 72,257.78/x
  3. Step 3: Cross multiply
    222,016.70x = 333,028.20 × 72,257.78
  4. Step 4: Simplify right side
    222,016.70x = 24,063,878,409.40
  5. Step 5: Solve for x
    x = 24,063,878,409.40/222,016.70
  6. Step 6: Final answer
    x = 108,387.70

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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.