Home / 177,980-275,490

Finding the Third Proportional to 177,980 and 275,490

Calculator

Solution

The third proportional to 177,980 and 275,490 is: 426,422.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,980 : 275,490 = 275,490 : x
  2. Step 2: Convert to fraction form
    177,980/275,490 = 275,490/x
  3. Step 3: Cross multiply
    177,980x = 275,490 × 275,490
  4. Step 4: Simplify right side
    177,980x = 75,894,740,100
  5. Step 5: Solve for x
    x = 75,894,740,100/177,980
  6. Step 6: Final answer
    x = 426,422.86

Related Problems

Find third proportional to 88,990 and 137,745
Half scale
Find third proportional to 355,960 and 550,980
Double scale
Find third proportional to 177,982 and 275,493
Similar ratio
Find third proportional to 266,970 and 413,235
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.