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Finding the Fourth Proportional to 331,450.40, 497,175.06 and 82,132.40

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Solution

The fourth proportional to 331,450.40, 497,175.06 and 82,132.40 is: 123,198.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,450.40 : 497,175.06 = 82,132.40 : x
  2. Step 2: Convert to fraction form
    331,450.40/497,175.06 = 82,132.40/x
  3. Step 3: Cross multiply
    331,450.40x = 497,175.06 × 82,132.40
  4. Step 4: Simplify right side
    331,450.40x = 40,834,180,897.94
  5. Step 5: Solve for x
    x = 40,834,180,897.94/331,450.40
  6. Step 6: Final answer
    x = 123,198.47

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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.