Home / 156,128-368,440

Finding the Third Proportional to 156,128 and 368,440

Calculator

Solution

The third proportional to 156,128 and 368,440 is: 869,466.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,128 : 368,440 = 368,440 : x
  2. Step 2: Convert to fraction form
    156,128/368,440 = 368,440/x
  3. Step 3: Cross multiply
    156,128x = 368,440 × 368,440
  4. Step 4: Simplify right side
    156,128x = 135,748,033,600
  5. Step 5: Solve for x
    x = 135,748,033,600/156,128
  6. Step 6: Final answer
    x = 869,466.29

Related Problems

Find third proportional to 78,064 and 184,220
Half scale
Find third proportional to 312,256 and 736,880
Double scale
Find third proportional to 156,130 and 368,445
Similar ratio
Find third proportional to 234,192 and 552,660
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.