Home / 172,128-247,914

Finding the Third Proportional to 172,128 and 247,914

Calculator

Solution

The third proportional to 172,128 and 247,914 is: 357,067.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,128 : 247,914 = 247,914 : x
  2. Step 2: Convert to fraction form
    172,128/247,914 = 247,914/x
  3. Step 3: Cross multiply
    172,128x = 247,914 × 247,914
  4. Step 4: Simplify right side
    172,128x = 61,461,351,396
  5. Step 5: Solve for x
    x = 61,461,351,396/172,128
  6. Step 6: Final answer
    x = 357,067.71

Related Problems

Find third proportional to 86,064 and 123,957
Half scale
Find third proportional to 344,256 and 495,828
Double scale
Find third proportional to 172,130 and 247,917
Similar ratio
Find third proportional to 258,192 and 371,871
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.