Home / 213,912-339,012

Finding the Third Proportional to 213,912 and 339,012

Calculator

Solution

The third proportional to 213,912 and 339,012 is: 537,272.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,912 : 339,012 = 339,012 : x
  2. Step 2: Convert to fraction form
    213,912/339,012 = 339,012/x
  3. Step 3: Cross multiply
    213,912x = 339,012 × 339,012
  4. Step 4: Simplify right side
    213,912x = 114,929,136,144
  5. Step 5: Solve for x
    x = 114,929,136,144/213,912
  6. Step 6: Final answer
    x = 537,272.97

Related Problems

Find third proportional to 106,956 and 169,506
Half scale
Find third proportional to 427,824 and 678,024
Double scale
Find third proportional to 213,914 and 339,015
Similar ratio
Find third proportional to 320,868 and 508,518
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.