Home / 321-481.50-177

Finding the Fourth Proportional to 321, 481.50 and 177

Calculator

Solution

The fourth proportional to 321, 481.50 and 177 is: 265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    321 : 481.50 = 177 : x
  2. Step 2: Convert to fraction form
    321/481.50 = 177/x
  3. Step 3: Cross multiply
    321x = 481.50 × 177
  4. Step 4: Simplify right side
    321x = 85,225.50
  5. Step 5: Solve for x
    x = 85,225.50/321
  6. Step 6: Final answer
    x = 265.50

Related Problems

Find fourth proportional to 160.50, 240.75 and 88.50
Half scale
Find fourth proportional to 642, 963 and 354
Double scale
Find fourth proportional to 322, 483 and 178
Similar ratio
Find fourth proportional to 481.50, 722.25 and 265.50
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.