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Finding the Third Proportional to 178,634 and 277,792

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Solution

The third proportional to 178,634 and 277,792 is: 431,991.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,634 : 277,792 = 277,792 : x
  2. Step 2: Convert to fraction form
    178,634/277,792 = 277,792/x
  3. Step 3: Cross multiply
    178,634x = 277,792 × 277,792
  4. Step 4: Simplify right side
    178,634x = 77,168,395,264
  5. Step 5: Solve for x
    x = 77,168,395,264/178,634
  6. Step 6: Final answer
    x = 431,991.64

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.