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Finding the Third Proportional to 77,902.50 and 169,476

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Solution

The third proportional to 77,902.50 and 169,476 is: 368,693.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,902.50 : 169,476 = 169,476 : x
  2. Step 2: Convert to fraction form
    77,902.50/169,476 = 169,476/x
  3. Step 3: Cross multiply
    77,902.50x = 169,476 × 169,476
  4. Step 4: Simplify right side
    77,902.50x = 28,722,114,576
  5. Step 5: Solve for x
    x = 28,722,114,576/77,902.50
  6. Step 6: Final answer
    x = 368,693.10

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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.