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Finding the Third Proportional to 312,178 and 467,015

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Solution

The third proportional to 312,178 and 467,015 is: 698,649.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,178 : 467,015 = 467,015 : x
  2. Step 2: Convert to fraction form
    312,178/467,015 = 467,015/x
  3. Step 3: Cross multiply
    312,178x = 467,015 × 467,015
  4. Step 4: Simplify right side
    312,178x = 218,103,010,225
  5. Step 5: Solve for x
    x = 218,103,010,225/312,178
  6. Step 6: Final answer
    x = 698,649.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.