Home / 193-266.40-124

Finding the Fourth Proportional to 193, 266.40 and 124

Calculator

Solution

The fourth proportional to 193, 266.40 and 124 is: 171.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    193 : 266.40 = 124 : x
  2. Step 2: Convert to fraction form
    193/266.40 = 124/x
  3. Step 3: Cross multiply
    193x = 266.40 × 124
  4. Step 4: Simplify right side
    193x = 33,033.60
  5. Step 5: Solve for x
    x = 33,033.60/193
  6. Step 6: Final answer
    x = 171.16

Related Problems

Find fourth proportional to 96.50, 133.20 and 62
Half scale
Find fourth proportional to 386, 532.80 and 248
Double scale
Find fourth proportional to 194, 267.78 and 125
Similar ratio
Find fourth proportional to 289.50, 399.60 and 186
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.