Home / 143,070-212,913

Finding the Third Proportional to 143,070 and 212,913

Calculator

Solution

The third proportional to 143,070 and 212,913 is: 316,851.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,070 : 212,913 = 212,913 : x
  2. Step 2: Convert to fraction form
    143,070/212,913 = 212,913/x
  3. Step 3: Cross multiply
    143,070x = 212,913 × 212,913
  4. Step 4: Simplify right side
    143,070x = 45,331,945,569
  5. Step 5: Solve for x
    x = 45,331,945,569/143,070
  6. Step 6: Final answer
    x = 316,851.51

Related Problems

Find third proportional to 71,535 and 106,456.50
Half scale
Find third proportional to 286,140 and 425,826
Double scale
Find third proportional to 143,072 and 212,916
Similar ratio
Find third proportional to 214,605 and 319,369.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.