Home / 143,244-311,976

Finding the Third Proportional to 143,244 and 311,976

Calculator

Solution

The third proportional to 143,244 and 311,976 is: 679,463.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,244 : 311,976 = 311,976 : x
  2. Step 2: Convert to fraction form
    143,244/311,976 = 311,976/x
  3. Step 3: Cross multiply
    143,244x = 311,976 × 311,976
  4. Step 4: Simplify right side
    143,244x = 97,329,024,576
  5. Step 5: Solve for x
    x = 97,329,024,576/143,244
  6. Step 6: Final answer
    x = 679,463.19

Related Problems

Find third proportional to 71,622 and 155,988
Half scale
Find third proportional to 286,488 and 623,952
Double scale
Find third proportional to 143,246 and 311,980
Similar ratio
Find third proportional to 214,866 and 467,964
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.