Home / 130,816-305,899

Finding the Third Proportional to 130,816 and 305,899

Calculator

Solution

The third proportional to 130,816 and 305,899 is: 715,311.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,816 : 305,899 = 305,899 : x
  2. Step 2: Convert to fraction form
    130,816/305,899 = 305,899/x
  3. Step 3: Cross multiply
    130,816x = 305,899 × 305,899
  4. Step 4: Simplify right side
    130,816x = 93,574,198,201
  5. Step 5: Solve for x
    x = 93,574,198,201/130,816
  6. Step 6: Final answer
    x = 715,311.57

Related Problems

Find third proportional to 65,408 and 152,949.50
Half scale
Find third proportional to 261,632 and 611,798
Double scale
Find third proportional to 130,818 and 305,904
Similar ratio
Find third proportional to 196,224 and 458,848.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.