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Finding the Third Proportional to 163,136 and 239,313

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Solution

The third proportional to 163,136 and 239,313 is: 351,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,136 : 239,313 = 239,313 : x
  2. Step 2: Convert to fraction form
    163,136/239,313 = 239,313/x
  3. Step 3: Cross multiply
    163,136x = 239,313 × 239,313
  4. Step 4: Simplify right side
    163,136x = 57,270,711,969
  5. Step 5: Solve for x
    x = 57,270,711,969/163,136
  6. Step 6: Final answer
    x = 351,061.15

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.