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Finding the Third Proportional to 66,084 and 145,236

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Solution

The third proportional to 66,084 and 145,236 is: 319,192.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,084 : 145,236 = 145,236 : x
  2. Step 2: Convert to fraction form
    66,084/145,236 = 145,236/x
  3. Step 3: Cross multiply
    66,084x = 145,236 × 145,236
  4. Step 4: Simplify right side
    66,084x = 21,093,495,696
  5. Step 5: Solve for x
    x = 21,093,495,696/66,084
  6. Step 6: Final answer
    x = 319,192.18

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.