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Finding the Fourth Proportional to 388,858.46, 536,694.28 and 227,704.10

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Solution

The fourth proportional to 388,858.46, 536,694.28 and 227,704.10 is: 314,272.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,858.46 : 536,694.28 = 227,704.10 : x
  2. Step 2: Convert to fraction form
    388,858.46/536,694.28 = 227,704.10/x
  3. Step 3: Cross multiply
    388,858.46x = 536,694.28 × 227,704.10
  4. Step 4: Simplify right side
    388,858.46x = 122,207,488,002.55
  5. Step 5: Solve for x
    x = 122,207,488,002.55/388,858.46
  6. Step 6: Final answer
    x = 314,272.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.