Home / 294.50-421.75

Finding the Third Proportional to 294.50 and 421.75

Calculator

Solution

The third proportional to 294.50 and 421.75 is: 603.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.50 : 421.75 = 421.75 : x
  2. Step 2: Convert to fraction form
    294.50/421.75 = 421.75/x
  3. Step 3: Cross multiply
    294.50x = 421.75 × 421.75
  4. Step 4: Simplify right side
    294.50x = 177,873.06
  5. Step 5: Solve for x
    x = 177,873.06/294.50
  6. Step 6: Final answer
    x = 603.98

Related Problems

Find third proportional to 147.25 and 210.88
Half scale
Find third proportional to 589 and 843.50
Double scale
Find third proportional to 297 and 425
Similar ratio
Find third proportional to 441.75 and 632.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.