Home / 356,876-538,338

Finding the Third Proportional to 356,876 and 538,338

Calculator

Solution

The third proportional to 356,876 and 538,338 is: 812,068.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,876 : 538,338 = 538,338 : x
  2. Step 2: Convert to fraction form
    356,876/538,338 = 538,338/x
  3. Step 3: Cross multiply
    356,876x = 538,338 × 538,338
  4. Step 4: Simplify right side
    356,876x = 289,807,802,244
  5. Step 5: Solve for x
    x = 289,807,802,244/356,876
  6. Step 6: Final answer
    x = 812,068.62

Related Problems

Find third proportional to 178,438 and 269,169
Half scale
Find third proportional to 713,752 and 1,076,676
Double scale
Find third proportional to 356,878 and 538,341
Similar ratio
Find third proportional to 535,314 and 807,507
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.