Home / 57,978-122,180

Finding the Third Proportional to 57,978 and 122,180

Calculator

Solution

The third proportional to 57,978 and 122,180 is: 257,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,978 : 122,180 = 122,180 : x
  2. Step 2: Convert to fraction form
    57,978/122,180 = 122,180/x
  3. Step 3: Cross multiply
    57,978x = 122,180 × 122,180
  4. Step 4: Simplify right side
    57,978x = 14,927,952,400
  5. Step 5: Solve for x
    x = 14,927,952,400/57,978
  6. Step 6: Final answer
    x = 257,476.15

Related Problems

Find third proportional to 28,989 and 61,090
Half scale
Find third proportional to 115,956 and 244,360
Double scale
Find third proportional to 57,980 and 122,184
Similar ratio
Find third proportional to 86,967 and 183,270
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.