Home / 331,682.20-497,231.70-198,615.40

Finding the Fourth Proportional to 331,682.20, 497,231.70 and 198,615.40

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Solution

The fourth proportional to 331,682.20, 497,231.70 and 198,615.40 is: 297,748.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,682.20 : 497,231.70 = 198,615.40 : x
  2. Step 2: Convert to fraction form
    331,682.20/497,231.70 = 198,615.40/x
  3. Step 3: Cross multiply
    331,682.20x = 497,231.70 × 198,615.40
  4. Step 4: Simplify right side
    331,682.20x = 98,757,872,988.18
  5. Step 5: Solve for x
    x = 98,757,872,988.18/331,682.20
  6. Step 6: Final answer
    x = 297,748.49

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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.