Home / 258,891-556,207

Finding the Third Proportional to 258,891 and 556,207

Calculator

Solution

The third proportional to 258,891 and 556,207 is: 1,194,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,891 : 556,207 = 556,207 : x
  2. Step 2: Convert to fraction form
    258,891/556,207 = 556,207/x
  3. Step 3: Cross multiply
    258,891x = 556,207 × 556,207
  4. Step 4: Simplify right side
    258,891x = 309,366,226,849
  5. Step 5: Solve for x
    x = 309,366,226,849/258,891
  6. Step 6: Final answer
    x = 1,194,967.10

Related Problems

Find third proportional to 129,445.50 and 278,103.50
Half scale
Find third proportional to 517,782 and 1,112,414
Double scale
Find third proportional to 258,893 and 556,211
Similar ratio
Find third proportional to 388,336.50 and 834,310.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.