Home / 143,865-316,281

Finding the Third Proportional to 143,865 and 316,281

Calculator

Solution

The third proportional to 143,865 and 316,281 is: 695,330.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,865 : 316,281 = 316,281 : x
  2. Step 2: Convert to fraction form
    143,865/316,281 = 316,281/x
  3. Step 3: Cross multiply
    143,865x = 316,281 × 316,281
  4. Step 4: Simplify right side
    143,865x = 100,033,670,961
  5. Step 5: Solve for x
    x = 100,033,670,961/143,865
  6. Step 6: Final answer
    x = 695,330.14

Related Problems

Find third proportional to 71,932.50 and 158,140.50
Half scale
Find third proportional to 287,730 and 632,562
Double scale
Find third proportional to 143,867 and 316,285
Similar ratio
Find third proportional to 215,797.50 and 474,421.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.