Home / 143,098-310,781

Finding the Third Proportional to 143,098 and 310,781

Calculator

Solution

The third proportional to 143,098 and 310,781 is: 674,955.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,098 : 310,781 = 310,781 : x
  2. Step 2: Convert to fraction form
    143,098/310,781 = 310,781/x
  3. Step 3: Cross multiply
    143,098x = 310,781 × 310,781
  4. Step 4: Simplify right side
    143,098x = 96,584,829,961
  5. Step 5: Solve for x
    x = 96,584,829,961/143,098
  6. Step 6: Final answer
    x = 674,955.83

Related Problems

Find third proportional to 71,549 and 155,390.50
Half scale
Find third proportional to 286,196 and 621,562
Double scale
Find third proportional to 143,100 and 310,785
Similar ratio
Find third proportional to 214,647 and 466,171.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.