Home / 331,282.20-496,631.70-198,215.40

Finding the Fourth Proportional to 331,282.20, 496,631.70 and 198,215.40

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Solution

The fourth proportional to 331,282.20, 496,631.70 and 198,215.40 is: 297,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,282.20 : 496,631.70 = 198,215.40 : x
  2. Step 2: Convert to fraction form
    331,282.20/496,631.70 = 198,215.40/x
  3. Step 3: Cross multiply
    331,282.20x = 496,631.70 × 198,215.40
  4. Step 4: Simplify right side
    331,282.20x = 98,440,051,068.18
  5. Step 5: Solve for x
    x = 98,440,051,068.18/331,282.20
  6. Step 6: Final answer
    x = 297,148.63

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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.