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Finding the Third Proportional to 239,276 and 371,556

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Solution

The third proportional to 239,276 and 371,556 is: 576,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,276 : 371,556 = 371,556 : x
  2. Step 2: Convert to fraction form
    239,276/371,556 = 371,556/x
  3. Step 3: Cross multiply
    239,276x = 371,556 × 371,556
  4. Step 4: Simplify right side
    239,276x = 138,053,861,136
  5. Step 5: Solve for x
    x = 138,053,861,136/239,276
  6. Step 6: Final answer
    x = 576,964.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.