Home / 575-862.50-190.28

Finding the Fourth Proportional to 575, 862.50 and 190.28

Calculator

Solution

The fourth proportional to 575, 862.50 and 190.28 is: 285.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    575 : 862.50 = 190.28 : x
  2. Step 2: Convert to fraction form
    575/862.50 = 190.28/x
  3. Step 3: Cross multiply
    575x = 862.50 × 190.28
  4. Step 4: Simplify right side
    575x = 164,116.50
  5. Step 5: Solve for x
    x = 164,116.50/575
  6. Step 6: Final answer
    x = 285.42

Related Problems

Find fourth proportional to 287.50, 431.25 and 95.14
Half scale
Find fourth proportional to 1,150, 1,725 and 380.56
Double scale
Find fourth proportional to 576, 864 and 191.28
Similar ratio
Find fourth proportional to 862.50, 1,293.75 and 285.42
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.