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Finding the Third Proportional to 155,570 and 247,367

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Solution

The third proportional to 155,570 and 247,367 is: 393,330.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,570 : 247,367 = 247,367 : x
  2. Step 2: Convert to fraction form
    155,570/247,367 = 247,367/x
  3. Step 3: Cross multiply
    155,570x = 247,367 × 247,367
  4. Step 4: Simplify right side
    155,570x = 61,190,432,689
  5. Step 5: Solve for x
    x = 61,190,432,689/155,570
  6. Step 6: Final answer
    x = 393,330.54

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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.