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Finding the Third Proportional to 146,190 and 314,939

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Solution

The third proportional to 146,190 and 314,939 is: 678,477.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,190 : 314,939 = 314,939 : x
  2. Step 2: Convert to fraction form
    146,190/314,939 = 314,939/x
  3. Step 3: Cross multiply
    146,190x = 314,939 × 314,939
  4. Step 4: Simplify right side
    146,190x = 99,186,573,721
  5. Step 5: Solve for x
    x = 99,186,573,721/146,190
  6. Step 6: Final answer
    x = 678,477.14

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.