Home / 305.91-433.13

Finding the Third Proportional to 305.91 and 433.13

Calculator

Solution

The third proportional to 305.91 and 433.13 is: 613.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    305.91 : 433.13 = 433.13 : x
  2. Step 2: Convert to fraction form
    305.91/433.13 = 433.13/x
  3. Step 3: Cross multiply
    305.91x = 433.13 × 433.13
  4. Step 4: Simplify right side
    305.91x = 187,597.27
  5. Step 5: Solve for x
    x = 187,597.27/305.91
  6. Step 6: Final answer
    x = 613.25

Related Problems

Find third proportional to 152.95 and 216.56
Half scale
Find third proportional to 611.81 and 866.25
Double scale
Find third proportional to 308 and 436
Similar ratio
Find third proportional to 458.86 and 649.69
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.