Home / 331,196.80-496,552.20-131,418.40

Finding the Fourth Proportional to 331,196.80, 496,552.20 and 131,418.40

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Solution

The fourth proportional to 331,196.80, 496,552.20 and 131,418.40 is: 197,031.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,196.80 : 496,552.20 = 131,418.40 : x
  2. Step 2: Convert to fraction form
    331,196.80/496,552.20 = 131,418.40/x
  3. Step 3: Cross multiply
    331,196.80x = 496,552.20 × 131,418.40
  4. Step 4: Simplify right side
    331,196.80x = 65,256,095,640.48
  5. Step 5: Solve for x
    x = 65,256,095,640.48/331,196.80
  6. Step 6: Final answer
    x = 197,031.18

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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.