Home / 149,400-312,648

Finding the Third Proportional to 149,400 and 312,648

Calculator

Solution

The third proportional to 149,400 and 312,648 is: 654,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,400 : 312,648 = 312,648 : x
  2. Step 2: Convert to fraction form
    149,400/312,648 = 312,648/x
  3. Step 3: Cross multiply
    149,400x = 312,648 × 312,648
  4. Step 4: Simplify right side
    149,400x = 97,748,771,904
  5. Step 5: Solve for x
    x = 97,748,771,904/149,400
  6. Step 6: Final answer
    x = 654,275.58

Related Problems

Find third proportional to 74,700 and 156,324
Half scale
Find third proportional to 298,800 and 625,296
Double scale
Find third proportional to 149,402 and 312,652
Similar ratio
Find third proportional to 224,100 and 468,972
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.