Home / 178,659-378,054

Finding the Third Proportional to 178,659 and 378,054

Calculator

Solution

The third proportional to 178,659 and 378,054 is: 799,986.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,659 : 378,054 = 378,054 : x
  2. Step 2: Convert to fraction form
    178,659/378,054 = 378,054/x
  3. Step 3: Cross multiply
    178,659x = 378,054 × 378,054
  4. Step 4: Simplify right side
    178,659x = 142,924,826,916
  5. Step 5: Solve for x
    x = 142,924,826,916/178,659
  6. Step 6: Final answer
    x = 799,986.72

Related Problems

Find third proportional to 89,329.50 and 189,027
Half scale
Find third proportional to 357,318 and 756,108
Double scale
Find third proportional to 178,661 and 378,058
Similar ratio
Find third proportional to 267,988.50 and 567,081
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.