Home / 283.04-390.52-172.56

Finding the Fourth Proportional to 283.04, 390.52 and 172.56

Calculator

Solution

The fourth proportional to 283.04, 390.52 and 172.56 is: 238.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.04 : 390.52 = 172.56 : x
  2. Step 2: Convert to fraction form
    283.04/390.52 = 172.56/x
  3. Step 3: Cross multiply
    283.04x = 390.52 × 172.56
  4. Step 4: Simplify right side
    283.04x = 67,388.13
  5. Step 5: Solve for x
    x = 67,388.13/283.04
  6. Step 6: Final answer
    x = 238.09

Related Problems

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.