Home / 475-655.66-337.40

Finding the Fourth Proportional to 475, 655.66 and 337.40

Calculator

Solution

The fourth proportional to 475, 655.66 and 337.40 is: 465.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    475 : 655.66 = 337.40 : x
  2. Step 2: Convert to fraction form
    475/655.66 = 337.40/x
  3. Step 3: Cross multiply
    475x = 655.66 × 337.40
  4. Step 4: Simplify right side
    475x = 221,219.68
  5. Step 5: Solve for x
    x = 221,219.68/475
  6. Step 6: Final answer
    x = 465.73

Related Problems

Find fourth proportional to 237.50, 327.83 and 168.70
Half scale
Find fourth proportional to 950, 1,311.32 and 674.80
Double scale
Find fourth proportional to 476, 657.04 and 338.40
Similar ratio
Find fourth proportional to 712.50, 983.49 and 506.10
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.