Home / 249,259-386,690

Finding the Third Proportional to 249,259 and 386,690

Calculator

Solution

The third proportional to 249,259 and 386,690 is: 599,894.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,259 : 386,690 = 386,690 : x
  2. Step 2: Convert to fraction form
    249,259/386,690 = 386,690/x
  3. Step 3: Cross multiply
    249,259x = 386,690 × 386,690
  4. Step 4: Simplify right side
    249,259x = 149,529,156,100
  5. Step 5: Solve for x
    x = 149,529,156,100/249,259
  6. Step 6: Final answer
    x = 599,894.71

Related Problems

Find third proportional to 124,629.50 and 193,345
Half scale
Find third proportional to 498,518 and 773,380
Double scale
Find third proportional to 249,261 and 386,693
Similar ratio
Find third proportional to 373,888.50 and 580,035
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.