Home / 199,818-427,977

Finding the Third Proportional to 199,818 and 427,977

Calculator

Solution

The third proportional to 199,818 and 427,977 is: 916,655.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,818 : 427,977 = 427,977 : x
  2. Step 2: Convert to fraction form
    199,818/427,977 = 427,977/x
  3. Step 3: Cross multiply
    199,818x = 427,977 × 427,977
  4. Step 4: Simplify right side
    199,818x = 183,164,312,529
  5. Step 5: Solve for x
    x = 183,164,312,529/199,818
  6. Step 6: Final answer
    x = 916,655.72

Related Problems

Find third proportional to 99,909 and 213,988.50
Half scale
Find third proportional to 399,636 and 855,954
Double scale
Find third proportional to 199,820 and 427,981
Similar ratio
Find third proportional to 299,727 and 641,965.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.