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Finding the Fourth Proportional to 331,203.70, 496,805.55 and 296,989.30

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Solution

The fourth proportional to 331,203.70, 496,805.55 and 296,989.30 is: 445,483.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,203.70 : 496,805.55 = 296,989.30 : x
  2. Step 2: Convert to fraction form
    331,203.70/496,805.55 = 296,989.30/x
  3. Step 3: Cross multiply
    331,203.70x = 496,805.55 × 296,989.30
  4. Step 4: Simplify right side
    331,203.70x = 147,545,932,530.62
  5. Step 5: Solve for x
    x = 147,545,932,530.62/331,203.70
  6. Step 6: Final answer
    x = 445,483.95

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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.