Home / 230,819.40-346,020.12-90,540.36

Finding the Fourth Proportional to 230,819.40, 346,020.12 and 90,540.36

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Solution

The fourth proportional to 230,819.40, 346,020.12 and 90,540.36 is: 135,728.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,819.40 : 346,020.12 = 90,540.36 : x
  2. Step 2: Convert to fraction form
    230,819.40/346,020.12 = 90,540.36/x
  3. Step 3: Cross multiply
    230,819.40x = 346,020.12 × 90,540.36
  4. Step 4: Simplify right side
    230,819.40x = 31,328,786,232.04
  5. Step 5: Solve for x
    x = 31,328,786,232.04/230,819.40
  6. Step 6: Final answer
    x = 135,728.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.