Home / 157,284-339,480

Finding the Third Proportional to 157,284 and 339,480

Calculator

Solution

The third proportional to 157,284 and 339,480 is: 732,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,284 : 339,480 = 339,480 : x
  2. Step 2: Convert to fraction form
    157,284/339,480 = 339,480/x
  3. Step 3: Cross multiply
    157,284x = 339,480 × 339,480
  4. Step 4: Simplify right side
    157,284x = 115,246,670,400
  5. Step 5: Solve for x
    x = 115,246,670,400/157,284
  6. Step 6: Final answer
    x = 732,729.78

Related Problems

Find third proportional to 78,642 and 169,740
Half scale
Find third proportional to 314,568 and 678,960
Double scale
Find third proportional to 157,286 and 339,484
Similar ratio
Find third proportional to 235,926 and 509,220
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.