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Finding the Fourth Proportional to 388,631.70, 536,200.29 and 267,805.62

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Solution

The fourth proportional to 388,631.70, 536,200.29 and 267,805.62 is: 369,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,631.70 : 536,200.29 = 267,805.62 : x
  2. Step 2: Convert to fraction form
    388,631.70/536,200.29 = 267,805.62/x
  3. Step 3: Cross multiply
    388,631.70x = 536,200.29 × 267,805.62
  4. Step 4: Simplify right side
    388,631.70x = 143,597,451,107.63
  5. Step 5: Solve for x
    x = 143,597,451,107.63/388,631.70
  6. Step 6: Final answer
    x = 369,494.95

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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.