Home / 121,394-257,854

Finding the Third Proportional to 121,394 and 257,854

Calculator

Solution

The third proportional to 121,394 and 257,854 is: 547,709.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,394 : 257,854 = 257,854 : x
  2. Step 2: Convert to fraction form
    121,394/257,854 = 257,854/x
  3. Step 3: Cross multiply
    121,394x = 257,854 × 257,854
  4. Step 4: Simplify right side
    121,394x = 66,488,685,316
  5. Step 5: Solve for x
    x = 66,488,685,316/121,394
  6. Step 6: Final answer
    x = 547,709.82

Related Problems

Find third proportional to 60,697 and 128,927
Half scale
Find third proportional to 242,788 and 515,708
Double scale
Find third proportional to 121,396 and 257,858
Similar ratio
Find third proportional to 182,091 and 386,781
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.