Home / 138,298-281,673

Finding the Third Proportional to 138,298 and 281,673

Calculator

Solution

The third proportional to 138,298 and 281,673 is: 573,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,298 : 281,673 = 281,673 : x
  2. Step 2: Convert to fraction form
    138,298/281,673 = 281,673/x
  3. Step 3: Cross multiply
    138,298x = 281,673 × 281,673
  4. Step 4: Simplify right side
    138,298x = 79,339,678,929
  5. Step 5: Solve for x
    x = 79,339,678,929/138,298
  6. Step 6: Final answer
    x = 573,686.38

Related Problems

Find third proportional to 69,149 and 140,836.50
Half scale
Find third proportional to 276,596 and 563,346
Double scale
Find third proportional to 138,300 and 281,677
Similar ratio
Find third proportional to 207,447 and 422,509.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.