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Finding the Fourth Proportional to 481,160.25, 664,176.11 and 279,956.25

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Solution

The fourth proportional to 481,160.25, 664,176.11 and 279,956.25 is: 386,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,160.25 : 664,176.11 = 279,956.25 : x
  2. Step 2: Convert to fraction form
    481,160.25/664,176.11 = 279,956.25/x
  3. Step 3: Cross multiply
    481,160.25x = 664,176.11 × 279,956.25
  4. Step 4: Simplify right side
    481,160.25x = 185,940,251,695.41
  5. Step 5: Solve for x
    x = 185,940,251,695.41/481,160.25
  6. Step 6: Final answer
    x = 386,441.42

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1.5x scale

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.