Home / 180,516-280,645.50

Finding the Third Proportional to 180,516 and 280,645.50

Calculator

Solution

The third proportional to 180,516 and 280,645.50 is: 436,315.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,516 : 280,645.50 = 280,645.50 : x
  2. Step 2: Convert to fraction form
    180,516/280,645.50 = 280,645.50/x
  3. Step 3: Cross multiply
    180,516x = 280,645.50 × 280,645.50
  4. Step 4: Simplify right side
    180,516x = 78,761,896,670.25
  5. Step 5: Solve for x
    x = 78,761,896,670.25/180,516
  6. Step 6: Final answer
    x = 436,315.32

Related Problems

Find third proportional to 90,258 and 140,322.75
Half scale
Find third proportional to 361,032 and 561,291
Double scale
Find third proportional to 180,518 and 280,649
Similar ratio
Find third proportional to 270,774 and 420,968.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.