Home / 128,884.50-282,555

Finding the Third Proportional to 128,884.50 and 282,555

Calculator

Solution

The third proportional to 128,884.50 and 282,555 is: 619,448.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,884.50 : 282,555 = 282,555 : x
  2. Step 2: Convert to fraction form
    128,884.50/282,555 = 282,555/x
  3. Step 3: Cross multiply
    128,884.50x = 282,555 × 282,555
  4. Step 4: Simplify right side
    128,884.50x = 79,837,328,025
  5. Step 5: Solve for x
    x = 79,837,328,025/128,884.50
  6. Step 6: Final answer
    x = 619,448.64

Related Problems

Find third proportional to 64,442.25 and 141,277.50
Half scale
Find third proportional to 257,769 and 565,110
Double scale
Find third proportional to 128,887 and 282,559
Similar ratio
Find third proportional to 193,326.75 and 423,832.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.