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Finding the Fourth Proportional to 279,453.40, 419,180.10 and 201,304.60

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Solution

The fourth proportional to 279,453.40, 419,180.10 and 201,304.60 is: 301,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,453.40 : 419,180.10 = 201,304.60 : x
  2. Step 2: Convert to fraction form
    279,453.40/419,180.10 = 201,304.60/x
  3. Step 3: Cross multiply
    279,453.40x = 419,180.10 × 201,304.60
  4. Step 4: Simplify right side
    279,453.40x = 84,382,882,358.46
  5. Step 5: Solve for x
    x = 84,382,882,358.46/279,453.40
  6. Step 6: Final answer
    x = 301,956.90

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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.