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Finding the Fourth Proportional to 251,993.04, 347,751 and 138,817.68

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Solution

The fourth proportional to 251,993.04, 347,751 and 138,817.68 is: 191,568.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,993.04 : 347,751 = 138,817.68 : x
  2. Step 2: Convert to fraction form
    251,993.04/347,751 = 138,817.68/x
  3. Step 3: Cross multiply
    251,993.04x = 347,751 × 138,817.68
  4. Step 4: Simplify right side
    251,993.04x = 48,273,987,037.68
  5. Step 5: Solve for x
    x = 48,273,987,037.68/251,993.04
  6. Step 6: Final answer
    x = 191,568.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.