Home / 255,106-556,140

Finding the Third Proportional to 255,106 and 556,140

Calculator

Solution

The third proportional to 255,106 and 556,140 is: 1,212,404.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,106 : 556,140 = 556,140 : x
  2. Step 2: Convert to fraction form
    255,106/556,140 = 556,140/x
  3. Step 3: Cross multiply
    255,106x = 556,140 × 556,140
  4. Step 4: Simplify right side
    255,106x = 309,291,699,600
  5. Step 5: Solve for x
    x = 309,291,699,600/255,106
  6. Step 6: Final answer
    x = 1,212,404.65

Related Problems

Find third proportional to 127,553 and 278,070
Half scale
Find third proportional to 510,212 and 1,112,280
Double scale
Find third proportional to 255,108 and 556,144
Similar ratio
Find third proportional to 382,659 and 834,210
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.