Home / 128,836-283,362

Finding the Third Proportional to 128,836 and 283,362

Calculator

Solution

The third proportional to 128,836 and 283,362 is: 623,226.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,836 : 283,362 = 283,362 : x
  2. Step 2: Convert to fraction form
    128,836/283,362 = 283,362/x
  3. Step 3: Cross multiply
    128,836x = 283,362 × 283,362
  4. Step 4: Simplify right side
    128,836x = 80,294,023,044
  5. Step 5: Solve for x
    x = 80,294,023,044/128,836
  6. Step 6: Final answer
    x = 623,226.61

Related Problems

Find third proportional to 64,418 and 141,681
Half scale
Find third proportional to 257,672 and 566,724
Double scale
Find third proportional to 128,838 and 283,366
Similar ratio
Find third proportional to 193,254 and 425,043
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.