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Finding the Fourth Proportional to 226,878.60, 339,972.30 and 191,627.40

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Solution

The fourth proportional to 226,878.60, 339,972.30 and 191,627.40 is: 287,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,878.60 : 339,972.30 = 191,627.40 : x
  2. Step 2: Convert to fraction form
    226,878.60/339,972.30 = 191,627.40/x
  3. Step 3: Cross multiply
    226,878.60x = 339,972.30 × 191,627.40
  4. Step 4: Simplify right side
    226,878.60x = 65,148,007,921.02
  5. Step 5: Solve for x
    x = 65,148,007,921.02/226,878.60
  6. Step 6: Final answer
    x = 287,149.20

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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.