Home / 102,140-220,720

Finding the Third Proportional to 102,140 and 220,720

Calculator

Solution

The third proportional to 102,140 and 220,720 is: 476,966.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,140 : 220,720 = 220,720 : x
  2. Step 2: Convert to fraction form
    102,140/220,720 = 220,720/x
  3. Step 3: Cross multiply
    102,140x = 220,720 × 220,720
  4. Step 4: Simplify right side
    102,140x = 48,717,318,400
  5. Step 5: Solve for x
    x = 48,717,318,400/102,140
  6. Step 6: Final answer
    x = 476,966.11

Related Problems

Find third proportional to 51,070 and 110,360
Half scale
Find third proportional to 204,280 and 441,440
Double scale
Find third proportional to 102,142 and 220,724
Similar ratio
Find third proportional to 153,210 and 331,080
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.