Home / 343,882.09-515,855.94-133,536.43

Finding the Fourth Proportional to 343,882.09, 515,855.94 and 133,536.43

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Solution

The fourth proportional to 343,882.09, 515,855.94 and 133,536.43 is: 200,317.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,882.09 : 515,855.94 = 133,536.43 : x
  2. Step 2: Convert to fraction form
    343,882.09/515,855.94 = 133,536.43/x
  3. Step 3: Cross multiply
    343,882.09x = 515,855.94 × 133,536.43
  4. Step 4: Simplify right side
    343,882.09x = 68,885,560,621.89
  5. Step 5: Solve for x
    x = 68,885,560,621.89/343,882.09
  6. Step 6: Final answer
    x = 200,317.38

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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.