Home / 358,880-557,256

Finding the Third Proportional to 358,880 and 557,256

Calculator

Solution

The third proportional to 358,880 and 557,256 is: 865,287.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,880 : 557,256 = 557,256 : x
  2. Step 2: Convert to fraction form
    358,880/557,256 = 557,256/x
  3. Step 3: Cross multiply
    358,880x = 557,256 × 557,256
  4. Step 4: Simplify right side
    358,880x = 310,534,249,536
  5. Step 5: Solve for x
    x = 310,534,249,536/358,880
  6. Step 6: Final answer
    x = 865,287.14

Related Problems

Find third proportional to 179,440 and 278,628
Half scale
Find third proportional to 717,760 and 1,114,512
Double scale
Find third proportional to 358,882 and 557,259
Similar ratio
Find third proportional to 538,320 and 835,884
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.