Home / 269,310-398,760

Finding the Third Proportional to 269,310 and 398,760

Calculator

Solution

The third proportional to 269,310 and 398,760 is: 590,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,310 : 398,760 = 398,760 : x
  2. Step 2: Convert to fraction form
    269,310/398,760 = 398,760/x
  3. Step 3: Cross multiply
    269,310x = 398,760 × 398,760
  4. Step 4: Simplify right side
    269,310x = 159,009,537,600
  5. Step 5: Solve for x
    x = 159,009,537,600/269,310
  6. Step 6: Final answer
    x = 590,433.10

Related Problems

Find third proportional to 134,655 and 199,380
Half scale
Find third proportional to 538,620 and 797,520
Double scale
Find third proportional to 269,312 and 398,763
Similar ratio
Find third proportional to 403,965 and 598,140
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.