Home / 121,428-265,028

Finding the Third Proportional to 121,428 and 265,028

Calculator

Solution

The third proportional to 121,428 and 265,028 is: 578,448.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,428 : 265,028 = 265,028 : x
  2. Step 2: Convert to fraction form
    121,428/265,028 = 265,028/x
  3. Step 3: Cross multiply
    121,428x = 265,028 × 265,028
  4. Step 4: Simplify right side
    121,428x = 70,239,840,784
  5. Step 5: Solve for x
    x = 70,239,840,784/121,428
  6. Step 6: Final answer
    x = 578,448.47

Related Problems

Find third proportional to 60,714 and 132,514
Half scale
Find third proportional to 242,856 and 530,056
Double scale
Find third proportional to 121,430 and 265,032
Similar ratio
Find third proportional to 182,142 and 397,542
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.