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Finding the Third Proportional to 77,889.38 and 169,447.50

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Solution

The third proportional to 77,889.38 and 169,447.50 is: 368,631.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,889.38 : 169,447.50 = 169,447.50 : x
  2. Step 2: Convert to fraction form
    77,889.38/169,447.50 = 169,447.50/x
  3. Step 3: Cross multiply
    77,889.38x = 169,447.50 × 169,447.50
  4. Step 4: Simplify right side
    77,889.38x = 28,712,455,256.25
  5. Step 5: Solve for x
    x = 28,712,455,256.25/77,889.38
  6. Step 6: Final answer
    x = 368,631.22

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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.