Home / 117,358-256,221

Finding the Third Proportional to 117,358 and 256,221

Calculator

Solution

The third proportional to 117,358 and 256,221 is: 559,392.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,358 : 256,221 = 256,221 : x
  2. Step 2: Convert to fraction form
    117,358/256,221 = 256,221/x
  3. Step 3: Cross multiply
    117,358x = 256,221 × 256,221
  4. Step 4: Simplify right side
    117,358x = 65,649,200,841
  5. Step 5: Solve for x
    x = 65,649,200,841/117,358
  6. Step 6: Final answer
    x = 559,392.63

Related Problems

Find third proportional to 58,679 and 128,110.50
Half scale
Find third proportional to 234,716 and 512,442
Double scale
Find third proportional to 117,360 and 256,225
Similar ratio
Find third proportional to 176,037 and 384,331.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.