Home / 280,824-421,236-83,832

Finding the Fourth Proportional to 280,824, 421,236 and 83,832

Calculator

Solution

The fourth proportional to 280,824, 421,236 and 83,832 is: 125,748

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,824 : 421,236 = 83,832 : x
  2. Step 2: Convert to fraction form
    280,824/421,236 = 83,832/x
  3. Step 3: Cross multiply
    280,824x = 421,236 × 83,832
  4. Step 4: Simplify right side
    280,824x = 35,313,056,352
  5. Step 5: Solve for x
    x = 35,313,056,352/280,824
  6. Step 6: Final answer
    x = 125,748

Related Problems

Find fourth proportional to 140,412, 210,618 and 41,916
Half scale
Find fourth proportional to 561,648, 842,472 and 167,664
Double scale
Find fourth proportional to 280,825, 421,237.50 and 83,833
Similar ratio
Find fourth proportional to 421,236, 631,854 and 125,748
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.