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Finding the Third Proportional to 172,309.50 and 251,779.50

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Solution

The third proportional to 172,309.50 and 251,779.50 is: 367,901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,309.50 : 251,779.50 = 251,779.50 : x
  2. Step 2: Convert to fraction form
    172,309.50/251,779.50 = 251,779.50/x
  3. Step 3: Cross multiply
    172,309.50x = 251,779.50 × 251,779.50
  4. Step 4: Simplify right side
    172,309.50x = 63,392,916,620.25
  5. Step 5: Solve for x
    x = 63,392,916,620.25/172,309.50
  6. Step 6: Final answer
    x = 367,901.46

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.