Home / 87,388-189,608

Finding the Third Proportional to 87,388 and 189,608

Calculator

Solution

The third proportional to 87,388 and 189,608 is: 411,397.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,388 : 189,608 = 189,608 : x
  2. Step 2: Convert to fraction form
    87,388/189,608 = 189,608/x
  3. Step 3: Cross multiply
    87,388x = 189,608 × 189,608
  4. Step 4: Simplify right side
    87,388x = 35,951,193,664
  5. Step 5: Solve for x
    x = 35,951,193,664/87,388
  6. Step 6: Final answer
    x = 411,397.37

Related Problems

Find third proportional to 43,694 and 94,804
Half scale
Find third proportional to 174,776 and 379,216
Double scale
Find third proportional to 87,390 and 189,612
Similar ratio
Find third proportional to 131,082 and 284,412
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.