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Finding the Fourth Proportional to 221,493.60, 331,844.40 and 134,781.60

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Solution

The fourth proportional to 221,493.60, 331,844.40 and 134,781.60 is: 201,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,493.60 : 331,844.40 = 134,781.60 : x
  2. Step 2: Convert to fraction form
    221,493.60/331,844.40 = 134,781.60/x
  3. Step 3: Cross multiply
    221,493.60x = 331,844.40 × 134,781.60
  4. Step 4: Simplify right side
    221,493.60x = 44,726,519,183.04
  5. Step 5: Solve for x
    x = 44,726,519,183.04/221,493.60
  6. Step 6: Final answer
    x = 201,931.43

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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.