Home / 142,176-311,136

Finding the Third Proportional to 142,176 and 311,136

Calculator

Solution

The third proportional to 142,176 and 311,136 is: 680,885.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,176 : 311,136 = 311,136 : x
  2. Step 2: Convert to fraction form
    142,176/311,136 = 311,136/x
  3. Step 3: Cross multiply
    142,176x = 311,136 × 311,136
  4. Step 4: Simplify right side
    142,176x = 96,805,610,496
  5. Step 5: Solve for x
    x = 96,805,610,496/142,176
  6. Step 6: Final answer
    x = 680,885.74

Related Problems

Find third proportional to 71,088 and 155,568
Half scale
Find third proportional to 284,352 and 622,272
Double scale
Find third proportional to 142,178 and 311,140
Similar ratio
Find third proportional to 213,264 and 466,704
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.