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Finding the Fourth Proportional to 269,016.80, 371,231.21 and 154,213.14

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Solution

The fourth proportional to 269,016.80, 371,231.21 and 154,213.14 is: 212,807.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,016.80 : 371,231.21 = 154,213.14 : x
  2. Step 2: Convert to fraction form
    269,016.80/371,231.21 = 154,213.14/x
  3. Step 3: Cross multiply
    269,016.80x = 371,231.21 × 154,213.14
  4. Step 4: Simplify right side
    269,016.80x = 57,248,729,789.03
  5. Step 5: Solve for x
    x = 57,248,729,789.03/269,016.80
  6. Step 6: Final answer
    x = 212,807.27

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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.