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Finding the Fourth Proportional to 481,499.62, 664,468.87 and 266,639.42

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Solution

The fourth proportional to 481,499.62, 664,468.87 and 266,639.42 is: 367,962.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,499.62 : 664,468.87 = 266,639.42 : x
  2. Step 2: Convert to fraction form
    481,499.62/664,468.87 = 266,639.42/x
  3. Step 3: Cross multiply
    481,499.62x = 664,468.87 × 266,639.42
  4. Step 4: Simplify right side
    481,499.62x = 177,173,593,438.26
  5. Step 5: Solve for x
    x = 177,173,593,438.26/481,499.62
  6. Step 6: Final answer
    x = 367,962.07

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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.