Home / 281,889-431,766

Finding the Third Proportional to 281,889 and 431,766

Calculator

Solution

The third proportional to 281,889 and 431,766 is: 661,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,889 : 431,766 = 431,766 : x
  2. Step 2: Convert to fraction form
    281,889/431,766 = 431,766/x
  3. Step 3: Cross multiply
    281,889x = 431,766 × 431,766
  4. Step 4: Simplify right side
    281,889x = 186,421,878,756
  5. Step 5: Solve for x
    x = 186,421,878,756/281,889
  6. Step 6: Final answer
    x = 661,330.80

Related Problems

Find third proportional to 140,944.50 and 215,883
Half scale
Find third proportional to 563,778 and 863,532
Double scale
Find third proportional to 281,891 and 431,769
Similar ratio
Find third proportional to 422,833.50 and 647,649
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.