Home / 128,592-278,568

Finding the Third Proportional to 128,592 and 278,568

Calculator

Solution

The third proportional to 128,592 and 278,568 is: 603,460.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,592 : 278,568 = 278,568 : x
  2. Step 2: Convert to fraction form
    128,592/278,568 = 278,568/x
  3. Step 3: Cross multiply
    128,592x = 278,568 × 278,568
  4. Step 4: Simplify right side
    128,592x = 77,600,130,624
  5. Step 5: Solve for x
    x = 77,600,130,624/128,592
  6. Step 6: Final answer
    x = 603,460.02

Related Problems

Find third proportional to 64,296 and 139,284
Half scale
Find third proportional to 257,184 and 557,136
Double scale
Find third proportional to 128,594 and 278,572
Similar ratio
Find third proportional to 192,888 and 417,852
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.