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Finding the Fourth Proportional to 225,932.12, 311,794.62 and 136,490.84

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Solution

The fourth proportional to 225,932.12, 311,794.62 and 136,490.84 is: 188,362.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,932.12 : 311,794.62 = 136,490.84 : x
  2. Step 2: Convert to fraction form
    225,932.12/311,794.62 = 136,490.84/x
  3. Step 3: Cross multiply
    225,932.12x = 311,794.62 × 136,490.84
  4. Step 4: Simplify right side
    225,932.12x = 42,557,109,591.28
  5. Step 5: Solve for x
    x = 42,557,109,591.28/225,932.12
  6. Step 6: Final answer
    x = 188,362.37

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1.5x scale

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.