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Finding the Third Proportional to 209,779 and 314,596

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Solution

The third proportional to 209,779 and 314,596 is: 471,785.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,779 : 314,596 = 314,596 : x
  2. Step 2: Convert to fraction form
    209,779/314,596 = 314,596/x
  3. Step 3: Cross multiply
    209,779x = 314,596 × 314,596
  4. Step 4: Simplify right side
    209,779x = 98,970,643,216
  5. Step 5: Solve for x
    x = 98,970,643,216/209,779
  6. Step 6: Final answer
    x = 471,785.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.