Home / 280,358-419,373

Finding the Third Proportional to 280,358 and 419,373

Calculator

Solution

The third proportional to 280,358 and 419,373 is: 627,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,358 : 419,373 = 419,373 : x
  2. Step 2: Convert to fraction form
    280,358/419,373 = 419,373/x
  3. Step 3: Cross multiply
    280,358x = 419,373 × 419,373
  4. Step 4: Simplify right side
    280,358x = 175,873,713,129
  5. Step 5: Solve for x
    x = 175,873,713,129/280,358
  6. Step 6: Final answer
    x = 627,318.33

Related Problems

Find third proportional to 140,179 and 209,686.50
Half scale
Find third proportional to 560,716 and 838,746
Double scale
Find third proportional to 280,360 and 419,376
Similar ratio
Find third proportional to 420,537 and 629,059.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.