Home / 143,242-312,160

Finding the Third Proportional to 143,242 and 312,160

Calculator

Solution

The third proportional to 143,242 and 312,160 is: 680,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,242 : 312,160 = 312,160 : x
  2. Step 2: Convert to fraction form
    143,242/312,160 = 312,160/x
  3. Step 3: Cross multiply
    143,242x = 312,160 × 312,160
  4. Step 4: Simplify right side
    143,242x = 97,443,865,600
  5. Step 5: Solve for x
    x = 97,443,865,600/143,242
  6. Step 6: Final answer
    x = 680,274.40

Related Problems

Find third proportional to 71,621 and 156,080
Half scale
Find third proportional to 286,484 and 624,320
Double scale
Find third proportional to 143,244 and 312,164
Similar ratio
Find third proportional to 214,863 and 468,240
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.