Home / 64,278-133,415

Finding the Third Proportional to 64,278 and 133,415

Calculator

Solution

The third proportional to 64,278 and 133,415 is: 276,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,278 : 133,415 = 133,415 : x
  2. Step 2: Convert to fraction form
    64,278/133,415 = 133,415/x
  3. Step 3: Cross multiply
    64,278x = 133,415 × 133,415
  4. Step 4: Simplify right side
    64,278x = 17,799,562,225
  5. Step 5: Solve for x
    x = 17,799,562,225/64,278
  6. Step 6: Final answer
    x = 276,915.31

Related Problems

Find third proportional to 32,139 and 66,707.50
Half scale
Find third proportional to 128,556 and 266,830
Double scale
Find third proportional to 64,280 and 133,419
Similar ratio
Find third proportional to 96,417 and 200,122.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.