Home / 257,954-398,594

Finding the Third Proportional to 257,954 and 398,594

Calculator

Solution

The third proportional to 257,954 and 398,594 is: 615,912.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,954 : 398,594 = 398,594 : x
  2. Step 2: Convert to fraction form
    257,954/398,594 = 398,594/x
  3. Step 3: Cross multiply
    257,954x = 398,594 × 398,594
  4. Step 4: Simplify right side
    257,954x = 158,877,176,836
  5. Step 5: Solve for x
    x = 158,877,176,836/257,954
  6. Step 6: Final answer
    x = 615,912.82

Related Problems

Find third proportional to 128,977 and 199,297
Half scale
Find third proportional to 515,908 and 797,188
Double scale
Find third proportional to 257,956 and 398,597
Similar ratio
Find third proportional to 386,931 and 597,891
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.