Home / 178,066-277,311

Finding the Third Proportional to 178,066 and 277,311

Calculator

Solution

The third proportional to 178,066 and 277,311 is: 431,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,066 : 277,311 = 277,311 : x
  2. Step 2: Convert to fraction form
    178,066/277,311 = 277,311/x
  3. Step 3: Cross multiply
    178,066x = 277,311 × 277,311
  4. Step 4: Simplify right side
    178,066x = 76,901,390,721
  5. Step 5: Solve for x
    x = 76,901,390,721/178,066
  6. Step 6: Final answer
    x = 431,870.15

Related Problems

Find third proportional to 89,033 and 138,655.50
Half scale
Find third proportional to 356,132 and 554,622
Double scale
Find third proportional to 178,068 and 277,314
Similar ratio
Find third proportional to 267,099 and 415,966.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.