Home / 121,419-248,832

Finding the Third Proportional to 121,419 and 248,832

Calculator

Solution

The third proportional to 121,419 and 248,832 is: 509,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,419 : 248,832 = 248,832 : x
  2. Step 2: Convert to fraction form
    121,419/248,832 = 248,832/x
  3. Step 3: Cross multiply
    121,419x = 248,832 × 248,832
  4. Step 4: Simplify right side
    121,419x = 61,917,364,224
  5. Step 5: Solve for x
    x = 61,917,364,224/121,419
  6. Step 6: Final answer
    x = 509,947.90

Related Problems

Find third proportional to 60,709.50 and 124,416
Half scale
Find third proportional to 242,838 and 497,664
Double scale
Find third proportional to 121,421 and 248,836
Similar ratio
Find third proportional to 182,128.50 and 373,248
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.