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Finding the Third Proportional to 177,507 and 386,118

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Solution

The third proportional to 177,507 and 386,118 is: 839,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,507 : 386,118 = 386,118 : x
  2. Step 2: Convert to fraction form
    177,507/386,118 = 386,118/x
  3. Step 3: Cross multiply
    177,507x = 386,118 × 386,118
  4. Step 4: Simplify right side
    177,507x = 149,087,109,924
  5. Step 5: Solve for x
    x = 149,087,109,924/177,507
  6. Step 6: Final answer
    x = 839,894.26

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.