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Finding the Third Proportional to 66,816 and 142,528

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Solution

The third proportional to 66,816 and 142,528 is: 304,032.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,816 : 142,528 = 142,528 : x
  2. Step 2: Convert to fraction form
    66,816/142,528 = 142,528/x
  3. Step 3: Cross multiply
    66,816x = 142,528 × 142,528
  4. Step 4: Simplify right side
    66,816x = 20,314,230,784
  5. Step 5: Solve for x
    x = 20,314,230,784/66,816
  6. Step 6: Final answer
    x = 304,032.43

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.