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Finding the Fourth Proportional to 225,548.32, 338,327.97 and 75,790.78

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Solution

The fourth proportional to 225,548.32, 338,327.97 and 75,790.78 is: 113,688.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,548.32 : 338,327.97 = 75,790.78 : x
  2. Step 2: Convert to fraction form
    225,548.32/338,327.97 = 75,790.78/x
  3. Step 3: Cross multiply
    225,548.32x = 338,327.97 × 75,790.78
  4. Step 4: Simplify right side
    225,548.32x = 25,642,140,742.12
  5. Step 5: Solve for x
    x = 25,642,140,742.12/225,548.32
  6. Step 6: Final answer
    x = 113,688.01

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1.5x scale

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.