Home / 131,528-203,428

Finding the Third Proportional to 131,528 and 203,428

Calculator

Solution

The third proportional to 131,528 and 203,428 is: 314,632.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,528 : 203,428 = 203,428 : x
  2. Step 2: Convert to fraction form
    131,528/203,428 = 203,428/x
  3. Step 3: Cross multiply
    131,528x = 203,428 × 203,428
  4. Step 4: Simplify right side
    131,528x = 41,382,951,184
  5. Step 5: Solve for x
    x = 41,382,951,184/131,528
  6. Step 6: Final answer
    x = 314,632.25

Related Problems

Find third proportional to 65,764 and 101,714
Half scale
Find third proportional to 263,056 and 406,856
Double scale
Find third proportional to 131,530 and 203,431
Similar ratio
Find third proportional to 197,292 and 305,142
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.