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Finding the Third Proportional to 91,038.75 and 198,366.75

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Solution

The third proportional to 91,038.75 and 198,366.75 is: 432,226.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,038.75 : 198,366.75 = 198,366.75 : x
  2. Step 2: Convert to fraction form
    91,038.75/198,366.75 = 198,366.75/x
  3. Step 3: Cross multiply
    91,038.75x = 198,366.75 × 198,366.75
  4. Step 4: Simplify right side
    91,038.75x = 39,349,367,505.56
  5. Step 5: Solve for x
    x = 39,349,367,505.56/91,038.75
  6. Step 6: Final answer
    x = 432,226.58

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.