Home / 149,208-320,502

Finding the Third Proportional to 149,208 and 320,502

Calculator

Solution

The third proportional to 149,208 and 320,502 is: 688,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,208 : 320,502 = 320,502 : x
  2. Step 2: Convert to fraction form
    149,208/320,502 = 320,502/x
  3. Step 3: Cross multiply
    149,208x = 320,502 × 320,502
  4. Step 4: Simplify right side
    149,208x = 102,721,532,004
  5. Step 5: Solve for x
    x = 102,721,532,004/149,208
  6. Step 6: Final answer
    x = 688,445.20

Related Problems

Find third proportional to 74,604 and 160,251
Half scale
Find third proportional to 298,416 and 641,004
Double scale
Find third proportional to 149,210 and 320,506
Similar ratio
Find third proportional to 223,812 and 480,753
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.