Home / 74,640-154,320

Finding the Third Proportional to 74,640 and 154,320

Calculator

Solution

The third proportional to 74,640 and 154,320 is: 319,060.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,640 : 154,320 = 154,320 : x
  2. Step 2: Convert to fraction form
    74,640/154,320 = 154,320/x
  3. Step 3: Cross multiply
    74,640x = 154,320 × 154,320
  4. Step 4: Simplify right side
    74,640x = 23,814,662,400
  5. Step 5: Solve for x
    x = 23,814,662,400/74,640
  6. Step 6: Final answer
    x = 319,060.32

Related Problems

Find third proportional to 37,320 and 77,160
Half scale
Find third proportional to 149,280 and 308,640
Double scale
Find third proportional to 74,642 and 154,324
Similar ratio
Find third proportional to 111,960 and 231,480
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.