Home / 224.50-310-178.12

Finding the Fourth Proportional to 224.50, 310 and 178.12

Calculator

Solution

The fourth proportional to 224.50, 310 and 178.12 is: 245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.50 : 310 = 178.12 : x
  2. Step 2: Convert to fraction form
    224.50/310 = 178.12/x
  3. Step 3: Cross multiply
    224.50x = 310 × 178.12
  4. Step 4: Simplify right side
    224.50x = 55,215.65
  5. Step 5: Solve for x
    x = 55,215.65/224.50
  6. Step 6: Final answer
    x = 245.95

Related Problems

Find fourth proportional to 112.25, 155 and 89.06
Half scale
Find fourth proportional to 449, 620 and 356.23
Double scale
Find fourth proportional to 225.50, 311.38 and 179.12
Similar ratio
Find fourth proportional to 336.75, 465 and 267.17
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.