Home / 262,516-393,688

Finding the Third Proportional to 262,516 and 393,688

Calculator

Solution

The third proportional to 262,516 and 393,688 is: 590,403.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,516 : 393,688 = 393,688 : x
  2. Step 2: Convert to fraction form
    262,516/393,688 = 393,688/x
  3. Step 3: Cross multiply
    262,516x = 393,688 × 393,688
  4. Step 4: Simplify right side
    262,516x = 154,990,241,344
  5. Step 5: Solve for x
    x = 154,990,241,344/262,516
  6. Step 6: Final answer
    x = 590,403.03

Related Problems

Find third proportional to 131,258 and 196,844
Half scale
Find third proportional to 525,032 and 787,376
Double scale
Find third proportional to 262,518 and 393,691
Similar ratio
Find third proportional to 393,774 and 590,532
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.