Home / 331,531.60-497,297.40-82,213.60

Finding the Fourth Proportional to 331,531.60, 497,297.40 and 82,213.60

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Solution

The fourth proportional to 331,531.60, 497,297.40 and 82,213.60 is: 123,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,531.60 : 497,297.40 = 82,213.60 : x
  2. Step 2: Convert to fraction form
    331,531.60/497,297.40 = 82,213.60/x
  3. Step 3: Cross multiply
    331,531.60x = 497,297.40 × 82,213.60
  4. Step 4: Simplify right side
    331,531.60x = 40,884,609,524.64
  5. Step 5: Solve for x
    x = 40,884,609,524.64/331,531.60
  6. Step 6: Final answer
    x = 123,320.40

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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.