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Finding the Fourth Proportional to 301,188.27, 449,321.90 and 279,711.93

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Solution

The fourth proportional to 301,188.27, 449,321.90 and 279,711.93 is: 417,282.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,188.27 : 449,321.90 = 279,711.93 : x
  2. Step 2: Convert to fraction form
    301,188.27/449,321.90 = 279,711.93/x
  3. Step 3: Cross multiply
    301,188.27x = 449,321.90 × 279,711.93
  4. Step 4: Simplify right side
    301,188.27x = 125,680,694,441.71
  5. Step 5: Solve for x
    x = 125,680,694,441.71/301,188.27
  6. Step 6: Final answer
    x = 417,282.83

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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.