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Finding the Third Proportional to 255,085 and 556,110

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Solution

The third proportional to 255,085 and 556,110 is: 1,212,373.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,085 : 556,110 = 556,110 : x
  2. Step 2: Convert to fraction form
    255,085/556,110 = 556,110/x
  3. Step 3: Cross multiply
    255,085x = 556,110 × 556,110
  4. Step 4: Simplify right side
    255,085x = 309,258,332,100
  5. Step 5: Solve for x
    x = 309,258,332,100/255,085
  6. Step 6: Final answer
    x = 1,212,373.65

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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.