Home / 210,880-331,428

Finding the Third Proportional to 210,880 and 331,428

Calculator

Solution

The third proportional to 210,880 and 331,428 is: 520,886.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,880 : 331,428 = 331,428 : x
  2. Step 2: Convert to fraction form
    210,880/331,428 = 331,428/x
  3. Step 3: Cross multiply
    210,880x = 331,428 × 331,428
  4. Step 4: Simplify right side
    210,880x = 109,844,519,184
  5. Step 5: Solve for x
    x = 109,844,519,184/210,880
  6. Step 6: Final answer
    x = 520,886.38

Related Problems

Find third proportional to 105,440 and 165,714
Half scale
Find third proportional to 421,760 and 662,856
Double scale
Find third proportional to 210,882 and 331,431
Similar ratio
Find third proportional to 316,320 and 497,142
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.