Home / 100,331-155,280

Finding the Third Proportional to 100,331 and 155,280

Calculator

Solution

The third proportional to 100,331 and 155,280 is: 240,323.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,331 : 155,280 = 155,280 : x
  2. Step 2: Convert to fraction form
    100,331/155,280 = 155,280/x
  3. Step 3: Cross multiply
    100,331x = 155,280 × 155,280
  4. Step 4: Simplify right side
    100,331x = 24,111,878,400
  5. Step 5: Solve for x
    x = 24,111,878,400/100,331
  6. Step 6: Final answer
    x = 240,323.31

Related Problems

Find third proportional to 50,165.50 and 77,640
Half scale
Find third proportional to 200,662 and 310,560
Double scale
Find third proportional to 100,333 and 155,283
Similar ratio
Find third proportional to 150,496.50 and 232,920
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.