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Finding the Third Proportional to 155,492 and 247,539

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Solution

The third proportional to 155,492 and 247,539 is: 394,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,492 : 247,539 = 247,539 : x
  2. Step 2: Convert to fraction form
    155,492/247,539 = 247,539/x
  3. Step 3: Cross multiply
    155,492x = 247,539 × 247,539
  4. Step 4: Simplify right side
    155,492x = 61,275,556,521
  5. Step 5: Solve for x
    x = 61,275,556,521/155,492
  6. Step 6: Final answer
    x = 394,075.30

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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.