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Finding the Third Proportional to 130,779 and 277,254

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Solution

The third proportional to 130,779 and 277,254 is: 587,783.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,779 : 277,254 = 277,254 : x
  2. Step 2: Convert to fraction form
    130,779/277,254 = 277,254/x
  3. Step 3: Cross multiply
    130,779x = 277,254 × 277,254
  4. Step 4: Simplify right side
    130,779x = 76,869,780,516
  5. Step 5: Solve for x
    x = 76,869,780,516/130,779
  6. Step 6: Final answer
    x = 587,783.82

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.