Home / 242-363-71

Finding the Fourth Proportional to 242, 363 and 71

Calculator

Solution

The fourth proportional to 242, 363 and 71 is: 106.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    242 : 363 = 71 : x
  2. Step 2: Convert to fraction form
    242/363 = 71/x
  3. Step 3: Cross multiply
    242x = 363 × 71
  4. Step 4: Simplify right side
    242x = 25,773
  5. Step 5: Solve for x
    x = 25,773/242
  6. Step 6: Final answer
    x = 106.50

Related Problems

Find fourth proportional to 121, 181.50 and 35.50
Half scale
Find fourth proportional to 484, 726 and 142
Double scale
Find fourth proportional to 243, 364.50 and 72
Similar ratio
Find fourth proportional to 363, 544.50 and 106.50
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.