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Finding the Fourth Proportional to 269,811.68, 372,321 and 148,933.56

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Solution

The fourth proportional to 269,811.68, 372,321 and 148,933.56 is: 205,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,811.68 : 372,321 = 148,933.56 : x
  2. Step 2: Convert to fraction form
    269,811.68/372,321 = 148,933.56/x
  3. Step 3: Cross multiply
    269,811.68x = 372,321 × 148,933.56
  4. Step 4: Simplify right side
    269,811.68x = 55,451,091,992.76
  5. Step 5: Solve for x
    x = 55,451,091,992.76/269,811.68
  6. Step 6: Final answer
    x = 205,517.76

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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.