Home / 331,478.40-497,651.22-196,788.36

Finding the Fourth Proportional to 331,478.40, 497,651.22 and 196,788.36

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Solution

The fourth proportional to 331,478.40, 497,651.22 and 196,788.36 is: 295,439.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,478.40 : 497,651.22 = 196,788.36 : x
  2. Step 2: Convert to fraction form
    331,478.40/497,651.22 = 196,788.36/x
  3. Step 3: Cross multiply
    331,478.40x = 497,651.22 × 196,788.36
  4. Step 4: Simplify right side
    331,478.40x = 97,931,967,435.80
  5. Step 5: Solve for x
    x = 97,931,967,435.80/331,478.40
  6. Step 6: Final answer
    x = 295,439.97

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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.