Home / 255,121-556,170

Finding the Third Proportional to 255,121 and 556,170

Calculator

Solution

The third proportional to 255,121 and 556,170 is: 1,212,464.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,121 : 556,170 = 556,170 : x
  2. Step 2: Convert to fraction form
    255,121/556,170 = 556,170/x
  3. Step 3: Cross multiply
    255,121x = 556,170 × 556,170
  4. Step 4: Simplify right side
    255,121x = 309,325,068,900
  5. Step 5: Solve for x
    x = 309,325,068,900/255,121
  6. Step 6: Final answer
    x = 1,212,464.16

Related Problems

Find third proportional to 127,560.50 and 278,085
Half scale
Find third proportional to 510,242 and 1,112,340
Double scale
Find third proportional to 255,123 and 556,174
Similar ratio
Find third proportional to 382,681.50 and 834,255
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.