Home / 208,630-283,403

Finding the Third Proportional to 208,630 and 283,403

Calculator

Solution

The third proportional to 208,630 and 283,403 is: 384,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,630 : 283,403 = 283,403 : x
  2. Step 2: Convert to fraction form
    208,630/283,403 = 283,403/x
  3. Step 3: Cross multiply
    208,630x = 283,403 × 283,403
  4. Step 4: Simplify right side
    208,630x = 80,317,260,409
  5. Step 5: Solve for x
    x = 80,317,260,409/208,630
  6. Step 6: Final answer
    x = 384,974.65

Related Problems

Find third proportional to 104,315 and 141,701.50
Half scale
Find third proportional to 417,260 and 566,806
Double scale
Find third proportional to 208,632 and 283,406
Similar ratio
Find third proportional to 312,945 and 425,104.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.