Home / 120,030-261,660

Finding the Third Proportional to 120,030 and 261,660

Calculator

Solution

The third proportional to 120,030 and 261,660 is: 570,407.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,030 : 261,660 = 261,660 : x
  2. Step 2: Convert to fraction form
    120,030/261,660 = 261,660/x
  3. Step 3: Cross multiply
    120,030x = 261,660 × 261,660
  4. Step 4: Simplify right side
    120,030x = 68,465,955,600
  5. Step 5: Solve for x
    x = 68,465,955,600/120,030
  6. Step 6: Final answer
    x = 570,407.03

Related Problems

Find third proportional to 60,015 and 130,830
Half scale
Find third proportional to 240,060 and 523,320
Double scale
Find third proportional to 120,032 and 261,664
Similar ratio
Find third proportional to 180,045 and 392,490
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.