Home / 259,328-388,992-84,224

Finding the Fourth Proportional to 259,328, 388,992 and 84,224

Calculator

Solution

The fourth proportional to 259,328, 388,992 and 84,224 is: 126,336

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,328 : 388,992 = 84,224 : x
  2. Step 2: Convert to fraction form
    259,328/388,992 = 84,224/x
  3. Step 3: Cross multiply
    259,328x = 388,992 × 84,224
  4. Step 4: Simplify right side
    259,328x = 32,762,462,208
  5. Step 5: Solve for x
    x = 32,762,462,208/259,328
  6. Step 6: Final answer
    x = 126,336

Related Problems

Find fourth proportional to 129,664, 194,496 and 42,112
Half scale
Find fourth proportional to 518,656, 777,984 and 168,448
Double scale
Find fourth proportional to 259,329, 388,993.50 and 84,225
Similar ratio
Find fourth proportional to 388,992, 583,488 and 126,336
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.