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Finding the Third Proportional to 79,008 and 171,840

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Solution

The third proportional to 79,008 and 171,840 is: 373,746.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,008 : 171,840 = 171,840 : x
  2. Step 2: Convert to fraction form
    79,008/171,840 = 171,840/x
  3. Step 3: Cross multiply
    79,008x = 171,840 × 171,840
  4. Step 4: Simplify right side
    79,008x = 29,528,985,600
  5. Step 5: Solve for x
    x = 29,528,985,600/79,008
  6. Step 6: Final answer
    x = 373,746.78

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.