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Finding the Fourth Proportional to 279,609.60, 419,119.02 and 200,681.04

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Solution

The fourth proportional to 279,609.60, 419,119.02 and 200,681.04 is: 300,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,609.60 : 419,119.02 = 200,681.04 : x
  2. Step 2: Convert to fraction form
    279,609.60/419,119.02 = 200,681.04/x
  3. Step 3: Cross multiply
    279,609.60x = 419,119.02 × 200,681.04
  4. Step 4: Simplify right side
    279,609.60x = 84,109,240,817.38
  5. Step 5: Solve for x
    x = 84,109,240,817.38/279,609.60
  6. Step 6: Final answer
    x = 300,809.56

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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.