Home / 163,317-256,640

Finding the Third Proportional to 163,317 and 256,640

Calculator

Solution

The third proportional to 163,317 and 256,640 is: 403,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,317 : 256,640 = 256,640 : x
  2. Step 2: Convert to fraction form
    163,317/256,640 = 256,640/x
  3. Step 3: Cross multiply
    163,317x = 256,640 × 256,640
  4. Step 4: Simplify right side
    163,317x = 65,864,089,600
  5. Step 5: Solve for x
    x = 65,864,089,600/163,317
  6. Step 6: Final answer
    x = 403,289.86

Related Problems

Find third proportional to 81,658.50 and 128,320
Half scale
Find third proportional to 326,634 and 513,280
Double scale
Find third proportional to 163,319 and 256,643
Similar ratio
Find third proportional to 244,975.50 and 384,960
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.