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Finding the Fourth Proportional to 225,396.14, 311,054.08 and 123,425.88

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Solution

The fourth proportional to 225,396.14, 311,054.08 and 123,425.88 is: 170,331.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,396.14 : 311,054.08 = 123,425.88 : x
  2. Step 2: Convert to fraction form
    225,396.14/311,054.08 = 123,425.88/x
  3. Step 3: Cross multiply
    225,396.14x = 311,054.08 × 123,425.88
  4. Step 4: Simplify right side
    225,396.14x = 38,392,123,551.59
  5. Step 5: Solve for x
    x = 38,392,123,551.59/225,396.14
  6. Step 6: Final answer
    x = 170,331.77

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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.