Home / 118,779-256,128

Finding the Third Proportional to 118,779 and 256,128

Calculator

Solution

The third proportional to 118,779 and 256,128 is: 552,299.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,779 : 256,128 = 256,128 : x
  2. Step 2: Convert to fraction form
    118,779/256,128 = 256,128/x
  3. Step 3: Cross multiply
    118,779x = 256,128 × 256,128
  4. Step 4: Simplify right side
    118,779x = 65,601,552,384
  5. Step 5: Solve for x
    x = 65,601,552,384/118,779
  6. Step 6: Final answer
    x = 552,299.25

Related Problems

Find third proportional to 59,389.50 and 128,064
Half scale
Find third proportional to 237,558 and 512,256
Double scale
Find third proportional to 118,781 and 256,132
Similar ratio
Find third proportional to 178,168.50 and 384,192
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.