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Finding the Fourth Proportional to 225,371.73, 311,003.39 and 123,395.34

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Solution

The fourth proportional to 225,371.73, 311,003.39 and 123,395.34 is: 170,280.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,371.73 : 311,003.39 = 123,395.34 : x
  2. Step 2: Convert to fraction form
    225,371.73/311,003.39 = 123,395.34/x
  3. Step 3: Cross multiply
    225,371.73x = 311,003.39 × 123,395.34
  4. Step 4: Simplify right side
    225,371.73x = 38,376,368,433.23
  5. Step 5: Solve for x
    x = 38,376,368,433.23/225,371.73
  6. Step 6: Final answer
    x = 170,280.31

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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.