Home / 374-561.18-203

Finding the Fourth Proportional to 374, 561.18 and 203

Calculator

Solution

The fourth proportional to 374, 561.18 and 203 is: 304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    374 : 561.18 = 203 : x
  2. Step 2: Convert to fraction form
    374/561.18 = 203/x
  3. Step 3: Cross multiply
    374x = 561.18 × 203
  4. Step 4: Simplify right side
    374x = 113,919.54
  5. Step 5: Solve for x
    x = 113,919.54/374
  6. Step 6: Final answer
    x = 304.60

Related Problems

Find fourth proportional to 187, 280.59 and 101.50
Half scale
Find fourth proportional to 748, 1,122.36 and 406
Double scale
Find fourth proportional to 375, 562.68 and 204
Similar ratio
Find fourth proportional to 561, 841.77 and 304.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.