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Finding the Fourth Proportional to 222,285.78, 333,399.78 and 131,153.49

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Solution

The fourth proportional to 222,285.78, 333,399.78 and 131,153.49 is: 196,713.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,285.78 : 333,399.78 = 131,153.49 : x
  2. Step 2: Convert to fraction form
    222,285.78/333,399.78 = 131,153.49/x
  3. Step 3: Cross multiply
    222,285.78x = 333,399.78 × 131,153.49
  4. Step 4: Simplify right side
    222,285.78x = 43,726,544,712.23
  5. Step 5: Solve for x
    x = 43,726,544,712.23/222,285.78
  6. Step 6: Final answer
    x = 196,713.19

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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.