Home / 118,908-257,742

Finding the Third Proportional to 118,908 and 257,742

Calculator

Solution

The third proportional to 118,908 and 257,742 is: 558,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,908 : 257,742 = 257,742 : x
  2. Step 2: Convert to fraction form
    118,908/257,742 = 257,742/x
  3. Step 3: Cross multiply
    118,908x = 257,742 × 257,742
  4. Step 4: Simplify right side
    118,908x = 66,430,938,564
  5. Step 5: Solve for x
    x = 66,430,938,564/118,908
  6. Step 6: Final answer
    x = 558,675.10

Related Problems

Find third proportional to 59,454 and 128,871
Half scale
Find third proportional to 237,816 and 515,484
Double scale
Find third proportional to 118,910 and 257,746
Similar ratio
Find third proportional to 178,362 and 386,613
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.