Home / 492-738-150

Finding the Fourth Proportional to 492, 738 and 150

Calculator

Solution

The fourth proportional to 492, 738 and 150 is: 225

Step by Step Solution

  1. Step 1: Write the proportion equation
    492 : 738 = 150 : x
  2. Step 2: Convert to fraction form
    492/738 = 150/x
  3. Step 3: Cross multiply
    492x = 738 × 150
  4. Step 4: Simplify right side
    492x = 110,700
  5. Step 5: Solve for x
    x = 110,700/492
  6. Step 6: Final answer
    x = 225

Related Problems

Find fourth proportional to 246, 369 and 75
Half scale
Find fourth proportional to 984, 1,476 and 300
Double scale
Find fourth proportional to 493, 739.50 and 151
Similar ratio
Find fourth proportional to 738, 1,107 and 225
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.