Home / 133,040-289,360

Finding the Third Proportional to 133,040 and 289,360

Calculator

Solution

The third proportional to 133,040 and 289,360 is: 629,353.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,040 : 289,360 = 289,360 : x
  2. Step 2: Convert to fraction form
    133,040/289,360 = 289,360/x
  3. Step 3: Cross multiply
    133,040x = 289,360 × 289,360
  4. Step 4: Simplify right side
    133,040x = 83,729,209,600
  5. Step 5: Solve for x
    x = 83,729,209,600/133,040
  6. Step 6: Final answer
    x = 629,353.65

Related Problems

Find third proportional to 66,520 and 144,680
Half scale
Find third proportional to 266,080 and 578,720
Double scale
Find third proportional to 133,042 and 289,364
Similar ratio
Find third proportional to 199,560 and 434,040
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.