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Finding the Third Proportional to 154,440 and 331,992

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Solution

The third proportional to 154,440 and 331,992 is: 713,666.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,440 : 331,992 = 331,992 : x
  2. Step 2: Convert to fraction form
    154,440/331,992 = 331,992/x
  3. Step 3: Cross multiply
    154,440x = 331,992 × 331,992
  4. Step 4: Simplify right side
    154,440x = 110,218,688,064
  5. Step 5: Solve for x
    x = 110,218,688,064/154,440
  6. Step 6: Final answer
    x = 713,666.72

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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.