Home / 270,310.50-389,373.75

Finding the Third Proportional to 270,310.50 and 389,373.75

Calculator

Solution

The third proportional to 270,310.50 and 389,373.75 is: 560,880.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,310.50 : 389,373.75 = 389,373.75 : x
  2. Step 2: Convert to fraction form
    270,310.50/389,373.75 = 389,373.75/x
  3. Step 3: Cross multiply
    270,310.50x = 389,373.75 × 389,373.75
  4. Step 4: Simplify right side
    270,310.50x = 151,611,917,189.06
  5. Step 5: Solve for x
    x = 151,611,917,189.06/270,310.50
  6. Step 6: Final answer
    x = 560,880.61

Related Problems

Find third proportional to 135,155.25 and 194,686.88
Half scale
Find third proportional to 540,621 and 778,747.50
Double scale
Find third proportional to 270,313 and 389,377
Similar ratio
Find third proportional to 405,465.75 and 584,060.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.