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Finding the Third Proportional to 172,318 and 372,312

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Solution

The third proportional to 172,318 and 372,312 is: 804,421.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,318 : 372,312 = 372,312 : x
  2. Step 2: Convert to fraction form
    172,318/372,312 = 372,312/x
  3. Step 3: Cross multiply
    172,318x = 372,312 × 372,312
  4. Step 4: Simplify right side
    172,318x = 138,616,225,344
  5. Step 5: Solve for x
    x = 138,616,225,344/172,318
  6. Step 6: Final answer
    x = 804,421.04

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.