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Finding the Third Proportional to 121,296 and 255,156

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Solution

The third proportional to 121,296 and 255,156 is: 536,741.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,296 : 255,156 = 255,156 : x
  2. Step 2: Convert to fraction form
    121,296/255,156 = 255,156/x
  3. Step 3: Cross multiply
    121,296x = 255,156 × 255,156
  4. Step 4: Simplify right side
    121,296x = 65,104,584,336
  5. Step 5: Solve for x
    x = 65,104,584,336/121,296
  6. Step 6: Final answer
    x = 536,741.40

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.