Home / 302-453-74

Finding the Fourth Proportional to 302, 453 and 74

Calculator

Solution

The fourth proportional to 302, 453 and 74 is: 111

Step by Step Solution

  1. Step 1: Write the proportion equation
    302 : 453 = 74 : x
  2. Step 2: Convert to fraction form
    302/453 = 74/x
  3. Step 3: Cross multiply
    302x = 453 × 74
  4. Step 4: Simplify right side
    302x = 33,522
  5. Step 5: Solve for x
    x = 33,522/302
  6. Step 6: Final answer
    x = 111

Related Problems

Find fourth proportional to 151, 226.50 and 37
Half scale
Find fourth proportional to 604, 906 and 148
Double scale
Find fourth proportional to 303, 454.50 and 75
Similar ratio
Find fourth proportional to 453, 679.50 and 111
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.