Home / 378,729.70-567,329.10-236,137.30

Finding the Fourth Proportional to 378,729.70, 567,329.10 and 236,137.30

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Solution

The fourth proportional to 378,729.70, 567,329.10 and 236,137.30 is: 353,728.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,729.70 : 567,329.10 = 236,137.30 : x
  2. Step 2: Convert to fraction form
    378,729.70/567,329.10 = 236,137.30/x
  3. Step 3: Cross multiply
    378,729.70x = 567,329.10 × 236,137.30
  4. Step 4: Simplify right side
    378,729.70x = 133,967,561,885.43
  5. Step 5: Solve for x
    x = 133,967,561,885.43/378,729.70
  6. Step 6: Final answer
    x = 353,728.69

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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.