Home / 128,898-276,842

Finding the Third Proportional to 128,898 and 276,842

Calculator

Solution

The third proportional to 128,898 and 276,842 is: 594,590.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,898 : 276,842 = 276,842 : x
  2. Step 2: Convert to fraction form
    128,898/276,842 = 276,842/x
  3. Step 3: Cross multiply
    128,898x = 276,842 × 276,842
  4. Step 4: Simplify right side
    128,898x = 76,641,492,964
  5. Step 5: Solve for x
    x = 76,641,492,964/128,898
  6. Step 6: Final answer
    x = 594,590.24

Related Problems

Find third proportional to 64,449 and 138,421
Half scale
Find third proportional to 257,796 and 553,684
Double scale
Find third proportional to 128,900 and 276,846
Similar ratio
Find third proportional to 193,347 and 415,263
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.