Home / 331,490.20-496,943.70-198,423.40

Finding the Fourth Proportional to 331,490.20, 496,943.70 and 198,423.40

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Solution

The fourth proportional to 331,490.20, 496,943.70 and 198,423.40 is: 297,460.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,490.20 : 496,943.70 = 198,423.40 : x
  2. Step 2: Convert to fraction form
    331,490.20/496,943.70 = 198,423.40/x
  3. Step 3: Cross multiply
    331,490.20x = 496,943.70 × 198,423.40
  4. Step 4: Simplify right side
    331,490.20x = 98,605,258,562.58
  5. Step 5: Solve for x
    x = 98,605,258,562.58/331,490.20
  6. Step 6: Final answer
    x = 297,460.55

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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.