Home / 142,912-310,934

Finding the Third Proportional to 142,912 and 310,934

Calculator

Solution

The third proportional to 142,912 and 310,934 is: 676,499.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,912 : 310,934 = 310,934 : x
  2. Step 2: Convert to fraction form
    142,912/310,934 = 310,934/x
  3. Step 3: Cross multiply
    142,912x = 310,934 × 310,934
  4. Step 4: Simplify right side
    142,912x = 96,679,952,356
  5. Step 5: Solve for x
    x = 96,679,952,356/142,912
  6. Step 6: Final answer
    x = 676,499.89

Related Problems

Find third proportional to 71,456 and 155,467
Half scale
Find third proportional to 285,824 and 621,868
Double scale
Find third proportional to 142,914 and 310,938
Similar ratio
Find third proportional to 214,368 and 466,401
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.