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Finding the Third Proportional to 155,312 and 246,312

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Solution

The third proportional to 155,312 and 246,312 is: 390,630.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,312 : 246,312 = 246,312 : x
  2. Step 2: Convert to fraction form
    155,312/246,312 = 246,312/x
  3. Step 3: Cross multiply
    155,312x = 246,312 × 246,312
  4. Step 4: Simplify right side
    155,312x = 60,669,601,344
  5. Step 5: Solve for x
    x = 60,669,601,344/155,312
  6. Step 6: Final answer
    x = 390,630.48

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.