Home / 126,856-278,823

Finding the Third Proportional to 126,856 and 278,823

Calculator

Solution

The third proportional to 126,856 and 278,823 is: 612,838.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,856 : 278,823 = 278,823 : x
  2. Step 2: Convert to fraction form
    126,856/278,823 = 278,823/x
  3. Step 3: Cross multiply
    126,856x = 278,823 × 278,823
  4. Step 4: Simplify right side
    126,856x = 77,742,265,329
  5. Step 5: Solve for x
    x = 77,742,265,329/126,856
  6. Step 6: Final answer
    x = 612,838.69

Related Problems

Find third proportional to 63,428 and 139,411.50
Half scale
Find third proportional to 253,712 and 557,646
Double scale
Find third proportional to 126,858 and 278,827
Similar ratio
Find third proportional to 190,284 and 418,234.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.