Home / 178,640-276,482

Finding the Third Proportional to 178,640 and 276,482

Calculator

Solution

The third proportional to 178,640 and 276,482 is: 427,912.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,640 : 276,482 = 276,482 : x
  2. Step 2: Convert to fraction form
    178,640/276,482 = 276,482/x
  3. Step 3: Cross multiply
    178,640x = 276,482 × 276,482
  4. Step 4: Simplify right side
    178,640x = 76,442,296,324
  5. Step 5: Solve for x
    x = 76,442,296,324/178,640
  6. Step 6: Final answer
    x = 427,912.54

Related Problems

Find third proportional to 89,320 and 138,241
Half scale
Find third proportional to 357,280 and 552,964
Double scale
Find third proportional to 178,642 and 276,485
Similar ratio
Find third proportional to 267,960 and 414,723
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.