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Finding the Third Proportional to 255,536 and 555,856

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Solution

The third proportional to 255,536 and 555,856 is: 1,209,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,536 : 555,856 = 555,856 : x
  2. Step 2: Convert to fraction form
    255,536/555,856 = 555,856/x
  3. Step 3: Cross multiply
    255,536x = 555,856 × 555,856
  4. Step 4: Simplify right side
    255,536x = 308,975,892,736
  5. Step 5: Solve for x
    x = 308,975,892,736/255,536
  6. Step 6: Final answer
    x = 1,209,128.63

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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.