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Finding the Fourth Proportional to 333,330.25, 500,047.31 and 108,638.55

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Solution

The fourth proportional to 333,330.25, 500,047.31 and 108,638.55 is: 162,974.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,330.25 : 500,047.31 = 108,638.55 : x
  2. Step 2: Convert to fraction form
    333,330.25/500,047.31 = 108,638.55/x
  3. Step 3: Cross multiply
    333,330.25x = 500,047.31 × 108,638.55
  4. Step 4: Simplify right side
    333,330.25x = 54,324,414,689.80
  5. Step 5: Solve for x
    x = 54,324,414,689.80/333,330.25
  6. Step 6: Final answer
    x = 162,974.75

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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.