Home / 259,298-388,947-84,194

Finding the Fourth Proportional to 259,298, 388,947 and 84,194

Calculator

Solution

The fourth proportional to 259,298, 388,947 and 84,194 is: 126,291

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,298 : 388,947 = 84,194 : x
  2. Step 2: Convert to fraction form
    259,298/388,947 = 84,194/x
  3. Step 3: Cross multiply
    259,298x = 388,947 × 84,194
  4. Step 4: Simplify right side
    259,298x = 32,747,003,718
  5. Step 5: Solve for x
    x = 32,747,003,718/259,298
  6. Step 6: Final answer
    x = 126,291

Related Problems

Find fourth proportional to 129,649, 194,473.50 and 42,097
Half scale
Find fourth proportional to 518,596, 777,894 and 168,388
Double scale
Find fourth proportional to 259,299, 388,948.50 and 84,195
Similar ratio
Find fourth proportional to 388,947, 583,420.50 and 126,291
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.