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Finding the Fourth Proportional to 225,609.53, 338,456.97 and 90,684.11

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Solution

The fourth proportional to 225,609.53, 338,456.97 and 90,684.11 is: 136,043.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,609.53 : 338,456.97 = 90,684.11 : x
  2. Step 2: Convert to fraction form
    225,609.53/338,456.97 = 90,684.11/x
  3. Step 3: Cross multiply
    225,609.53x = 338,456.97 × 90,684.11
  4. Step 4: Simplify right side
    225,609.53x = 30,692,669,943.89
  5. Step 5: Solve for x
    x = 30,692,669,943.89/225,609.53
  6. Step 6: Final answer
    x = 136,043.33

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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.