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Finding the Fourth Proportional to 222,370.20, 306,871.00 and 120,395.70

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Solution

The fourth proportional to 222,370.20, 306,871.00 and 120,395.70 is: 166,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,370.20 : 306,871.00 = 120,395.70 : x
  2. Step 2: Convert to fraction form
    222,370.20/306,871.00 = 120,395.70/x
  3. Step 3: Cross multiply
    222,370.20x = 306,871.00 × 120,395.70
  4. Step 4: Simplify right side
    222,370.20x = 36,945,948,553.71
  5. Step 5: Solve for x
    x = 36,945,948,553.71/222,370.20
  6. Step 6: Final answer
    x = 166,146.13

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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.