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Finding the Fourth Proportional to 298,441.62, 447,694.43 and 127,681.07

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Solution

The fourth proportional to 298,441.62, 447,694.43 and 127,681.07 is: 191,535.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,441.62 : 447,694.43 = 127,681.07 : x
  2. Step 2: Convert to fraction form
    298,441.62/447,694.43 = 127,681.07/x
  3. Step 3: Cross multiply
    298,441.62x = 447,694.43 × 127,681.07
  4. Step 4: Simplify right side
    298,441.62x = 57,162,100,978.56
  5. Step 5: Solve for x
    x = 57,162,100,978.56/298,441.62
  6. Step 6: Final answer
    x = 191,535.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.