Home / 331,037.60-496,556.40-198,327.20

Finding the Fourth Proportional to 331,037.60, 496,556.40 and 198,327.20

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Solution

The fourth proportional to 331,037.60, 496,556.40 and 198,327.20 is: 297,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,037.60 : 496,556.40 = 198,327.20 : x
  2. Step 2: Convert to fraction form
    331,037.60/496,556.40 = 198,327.20/x
  3. Step 3: Cross multiply
    331,037.60x = 496,556.40 × 198,327.20
  4. Step 4: Simplify right side
    331,037.60x = 98,480,640,454.08
  5. Step 5: Solve for x
    x = 98,480,640,454.08/331,037.60
  6. Step 6: Final answer
    x = 297,490.80

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1.5x scale

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.