Home / 406-560.44-268.40

Finding the Fourth Proportional to 406, 560.44 and 268.40

Calculator

Solution

The fourth proportional to 406, 560.44 and 268.40 is: 370.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    406 : 560.44 = 268.40 : x
  2. Step 2: Convert to fraction form
    406/560.44 = 268.40/x
  3. Step 3: Cross multiply
    406x = 560.44 × 268.40
  4. Step 4: Simplify right side
    406x = 150,422.10
  5. Step 5: Solve for x
    x = 150,422.10/406
  6. Step 6: Final answer
    x = 370.50

Related Problems

Find fourth proportional to 203, 280.22 and 134.20
Half scale
Find fourth proportional to 812, 1,120.88 and 536.80
Double scale
Find fourth proportional to 407, 561.82 and 269.40
Similar ratio
Find fourth proportional to 609, 840.66 and 402.60
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.