Home / 64,281-138,439

Finding the Third Proportional to 64,281 and 138,439

Calculator

Solution

The third proportional to 64,281 and 138,439 is: 298,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,281 : 138,439 = 138,439 : x
  2. Step 2: Convert to fraction form
    64,281/138,439 = 138,439/x
  3. Step 3: Cross multiply
    64,281x = 138,439 × 138,439
  4. Step 4: Simplify right side
    64,281x = 19,165,356,721
  5. Step 5: Solve for x
    x = 19,165,356,721/64,281
  6. Step 6: Final answer
    x = 298,149.64

Related Problems

Find third proportional to 32,140.50 and 69,219.50
Half scale
Find third proportional to 128,562 and 276,878
Double scale
Find third proportional to 64,283 and 138,443
Similar ratio
Find third proportional to 96,421.50 and 207,658.50
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.