Home / 117,990-256,716

Finding the Third Proportional to 117,990 and 256,716

Calculator

Solution

The third proportional to 117,990 and 256,716 is: 558,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,990 : 256,716 = 256,716 : x
  2. Step 2: Convert to fraction form
    117,990/256,716 = 256,716/x
  3. Step 3: Cross multiply
    117,990x = 256,716 × 256,716
  4. Step 4: Simplify right side
    117,990x = 65,903,104,656
  5. Step 5: Solve for x
    x = 65,903,104,656/117,990
  6. Step 6: Final answer
    x = 558,548.22

Related Problems

Find third proportional to 58,995 and 128,358
Half scale
Find third proportional to 235,980 and 513,432
Double scale
Find third proportional to 117,992 and 256,720
Similar ratio
Find third proportional to 176,985 and 385,074
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.