Home / 189,418-315,655

Finding the Third Proportional to 189,418 and 315,655

Calculator

Solution

The third proportional to 189,418 and 315,655 is: 526,022.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,418 : 315,655 = 315,655 : x
  2. Step 2: Convert to fraction form
    189,418/315,655 = 315,655/x
  3. Step 3: Cross multiply
    189,418x = 315,655 × 315,655
  4. Step 4: Simplify right side
    189,418x = 99,638,079,025
  5. Step 5: Solve for x
    x = 99,638,079,025/189,418
  6. Step 6: Final answer
    x = 526,022.23

Related Problems

Find third proportional to 94,709 and 157,827.50
Half scale
Find third proportional to 378,836 and 631,310
Double scale
Find third proportional to 189,420 and 315,658
Similar ratio
Find third proportional to 284,127 and 473,482.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.