Home / 331,394.20-496,799.70-198,327.40

Finding the Fourth Proportional to 331,394.20, 496,799.70 and 198,327.40

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Solution

The fourth proportional to 331,394.20, 496,799.70 and 198,327.40 is: 297,316.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,394.20 : 496,799.70 = 198,327.40 : x
  2. Step 2: Convert to fraction form
    331,394.20/496,799.70 = 198,327.40/x
  3. Step 3: Cross multiply
    331,394.20x = 496,799.70 × 198,327.40
  4. Step 4: Simplify right side
    331,394.20x = 98,528,992,821.78
  5. Step 5: Solve for x
    x = 98,528,992,821.78/331,394.20
  6. Step 6: Final answer
    x = 297,316.59

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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.