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Finding the Fourth Proportional to 273,308.38, 409,962.47 and 140,103.68

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Solution

The fourth proportional to 273,308.38, 409,962.47 and 140,103.68 is: 210,155.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,308.38 : 409,962.47 = 140,103.68 : x
  2. Step 2: Convert to fraction form
    273,308.38/409,962.47 = 140,103.68/x
  3. Step 3: Cross multiply
    273,308.38x = 409,962.47 × 140,103.68
  4. Step 4: Simplify right side
    273,308.38x = 57,437,247,958.56
  5. Step 5: Solve for x
    x = 57,437,247,958.56/273,308.38
  6. Step 6: Final answer
    x = 210,155.46

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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.