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Finding the Third Proportional to 118,188 and 255,321

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Solution

The third proportional to 118,188 and 255,321 is: 551,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,188 : 255,321 = 255,321 : x
  2. Step 2: Convert to fraction form
    118,188/255,321 = 255,321/x
  3. Step 3: Cross multiply
    118,188x = 255,321 × 255,321
  4. Step 4: Simplify right side
    118,188x = 65,188,813,041
  5. Step 5: Solve for x
    x = 65,188,813,041/118,188
  6. Step 6: Final answer
    x = 551,568.80

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.