Home / 312,897-371,946

Finding the Third Proportional to 312,897 and 371,946

Calculator

Solution

The third proportional to 312,897 and 371,946 is: 442,138.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,897 : 371,946 = 371,946 : x
  2. Step 2: Convert to fraction form
    312,897/371,946 = 371,946/x
  3. Step 3: Cross multiply
    312,897x = 371,946 × 371,946
  4. Step 4: Simplify right side
    312,897x = 138,343,826,916
  5. Step 5: Solve for x
    x = 138,343,826,916/312,897
  6. Step 6: Final answer
    x = 442,138.55

Related Problems

Find third proportional to 156,448.50 and 185,973
Half scale
Find third proportional to 625,794 and 743,892
Double scale
Find third proportional to 312,899 and 371,948
Similar ratio
Find third proportional to 469,345.50 and 557,919
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.