Home / 138,830-295,178

Finding the Third Proportional to 138,830 and 295,178

Calculator

Solution

The third proportional to 138,830 and 295,178 is: 627,602.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,830 : 295,178 = 295,178 : x
  2. Step 2: Convert to fraction form
    138,830/295,178 = 295,178/x
  3. Step 3: Cross multiply
    138,830x = 295,178 × 295,178
  4. Step 4: Simplify right side
    138,830x = 87,130,051,684
  5. Step 5: Solve for x
    x = 87,130,051,684/138,830
  6. Step 6: Final answer
    x = 627,602.48

Related Problems

Find third proportional to 69,415 and 147,589
Half scale
Find third proportional to 277,660 and 590,356
Double scale
Find third proportional to 138,832 and 295,182
Similar ratio
Find third proportional to 208,245 and 442,767
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.