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Finding the Fourth Proportional to 225,581.73, 311,282.08 and 130,069.97

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Solution

The fourth proportional to 225,581.73, 311,282.08 and 130,069.97 is: 179,484.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,581.73 : 311,282.08 = 130,069.97 : x
  2. Step 2: Convert to fraction form
    225,581.73/311,282.08 = 130,069.97/x
  3. Step 3: Cross multiply
    225,581.73x = 311,282.08 × 130,069.97
  4. Step 4: Simplify right side
    225,581.73x = 40,488,450,807.14
  5. Step 5: Solve for x
    x = 40,488,450,807.14/225,581.73
  6. Step 6: Final answer
    x = 179,484.62

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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.