Home / 154,640-239,443

Finding the Third Proportional to 154,640 and 239,443

Calculator

Solution

The third proportional to 154,640 and 239,443 is: 370,751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,640 : 239,443 = 239,443 : x
  2. Step 2: Convert to fraction form
    154,640/239,443 = 239,443/x
  3. Step 3: Cross multiply
    154,640x = 239,443 × 239,443
  4. Step 4: Simplify right side
    154,640x = 57,332,950,249
  5. Step 5: Solve for x
    x = 57,332,950,249/154,640
  6. Step 6: Final answer
    x = 370,751.10

Related Problems

Find third proportional to 77,320 and 119,721.50
Half scale
Find third proportional to 309,280 and 478,886
Double scale
Find third proportional to 154,642 and 239,446
Similar ratio
Find third proportional to 231,960 and 359,164.50
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.