Home / 139,762-310,484

Finding the Third Proportional to 139,762 and 310,484

Calculator

Solution

The third proportional to 139,762 and 310,484 is: 689,746.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,762 : 310,484 = 310,484 : x
  2. Step 2: Convert to fraction form
    139,762/310,484 = 310,484/x
  3. Step 3: Cross multiply
    139,762x = 310,484 × 310,484
  4. Step 4: Simplify right side
    139,762x = 96,400,314,256
  5. Step 5: Solve for x
    x = 96,400,314,256/139,762
  6. Step 6: Final answer
    x = 689,746.24

Related Problems

Find third proportional to 69,881 and 155,242
Half scale
Find third proportional to 279,524 and 620,968
Double scale
Find third proportional to 139,764 and 310,488
Similar ratio
Find third proportional to 209,643 and 465,726
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.