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Finding the Fourth Proportional to 379,163.64, 566,287.21 and 343,553.88

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Solution

The fourth proportional to 379,163.64, 566,287.21 and 343,553.88 is: 513,103.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,163.64 : 566,287.21 = 343,553.88 : x
  2. Step 2: Convert to fraction form
    379,163.64/566,287.21 = 343,553.88/x
  3. Step 3: Cross multiply
    379,163.64x = 566,287.21 × 343,553.88
  4. Step 4: Simplify right side
    379,163.64x = 194,550,168,189.88
  5. Step 5: Solve for x
    x = 194,550,168,189.88/379,163.64
  6. Step 6: Final answer
    x = 513,103.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.