Home / 280,081.50-430,506

Finding the Third Proportional to 280,081.50 and 430,506

Calculator

Solution

The third proportional to 280,081.50 and 430,506 is: 661,719.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,081.50 : 430,506 = 430,506 : x
  2. Step 2: Convert to fraction form
    280,081.50/430,506 = 430,506/x
  3. Step 3: Cross multiply
    280,081.50x = 430,506 × 430,506
  4. Step 4: Simplify right side
    280,081.50x = 185,335,416,036
  5. Step 5: Solve for x
    x = 185,335,416,036/280,081.50
  6. Step 6: Final answer
    x = 661,719.59

Related Problems

Find third proportional to 140,040.75 and 215,253
Half scale
Find third proportional to 560,163 and 861,012
Double scale
Find third proportional to 280,084 and 430,509
Similar ratio
Find third proportional to 420,122.25 and 645,759
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.