Home / 231,121.24-346,398.30-131,365

Finding the Fourth Proportional to 231,121.24, 346,398.30 and 131,365

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Solution

The fourth proportional to 231,121.24, 346,398.30 and 131,365 is: 196,886.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,121.24 : 346,398.30 = 131,365 : x
  2. Step 2: Convert to fraction form
    231,121.24/346,398.30 = 131,365/x
  3. Step 3: Cross multiply
    231,121.24x = 346,398.30 × 131,365
  4. Step 4: Simplify right side
    231,121.24x = 45,504,612,679.50
  5. Step 5: Solve for x
    x = 45,504,612,679.50/231,121.24
  6. Step 6: Final answer
    x = 196,886.33

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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.