Home / 30,312-65,447

Finding the Third Proportional to 30,312 and 65,447

Calculator

Solution

The third proportional to 30,312 and 65,447 is: 141,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312 : 65,447 = 65,447 : x
  2. Step 2: Convert to fraction form
    30,312/65,447 = 65,447/x
  3. Step 3: Cross multiply
    30,312x = 65,447 × 65,447
  4. Step 4: Simplify right side
    30,312x = 4,283,309,809
  5. Step 5: Solve for x
    x = 4,283,309,809/30,312
  6. Step 6: Final answer
    x = 141,307.40

Related Problems

Find third proportional to 15,156 and 32,723.50
Half scale
Find third proportional to 60,624 and 130,894
Double scale
Find third proportional to 30,314 and 65,451
Similar ratio
Find third proportional to 45,468 and 98,170.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.