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Finding the Fourth Proportional to 305,900.75, 422,193.59 and 254,832.59

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Solution

The fourth proportional to 305,900.75, 422,193.59 and 254,832.59 is: 351,711.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,900.75 : 422,193.59 = 254,832.59 : x
  2. Step 2: Convert to fraction form
    305,900.75/422,193.59 = 254,832.59/x
  3. Step 3: Cross multiply
    305,900.75x = 422,193.59 × 254,832.59
  4. Step 4: Simplify right side
    305,900.75x = 107,588,682,635.97
  5. Step 5: Solve for x
    x = 107,588,682,635.97/305,900.75
  6. Step 6: Final answer
    x = 351,711.08

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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.