Home / 139,088-305,816

Finding the Third Proportional to 139,088 and 305,816

Calculator

Solution

The third proportional to 139,088 and 305,816 is: 672,404.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,088 : 305,816 = 305,816 : x
  2. Step 2: Convert to fraction form
    139,088/305,816 = 305,816/x
  3. Step 3: Cross multiply
    139,088x = 305,816 × 305,816
  4. Step 4: Simplify right side
    139,088x = 93,523,425,856
  5. Step 5: Solve for x
    x = 93,523,425,856/139,088
  6. Step 6: Final answer
    x = 672,404.71

Related Problems

Find third proportional to 69,544 and 152,908
Half scale
Find third proportional to 278,176 and 611,632
Double scale
Find third proportional to 139,090 and 305,820
Similar ratio
Find third proportional to 208,632 and 458,724
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.