Home / 229-343.50-92

Finding the Fourth Proportional to 229, 343.50 and 92

Calculator

Solution

The fourth proportional to 229, 343.50 and 92 is: 138

Step by Step Solution

  1. Step 1: Write the proportion equation
    229 : 343.50 = 92 : x
  2. Step 2: Convert to fraction form
    229/343.50 = 92/x
  3. Step 3: Cross multiply
    229x = 343.50 × 92
  4. Step 4: Simplify right side
    229x = 31,602
  5. Step 5: Solve for x
    x = 31,602/229
  6. Step 6: Final answer
    x = 138

Related Problems

Find fourth proportional to 114.50, 171.75 and 46
Half scale
Find fourth proportional to 458, 687 and 184
Double scale
Find fourth proportional to 230, 345 and 93
Similar ratio
Find fourth proportional to 343.50, 515.25 and 138
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.