Home / 828.60-1,242.54-251.34

Finding the Fourth Proportional to 828.60, 1,242.54 and 251.34

Calculator

Solution

The fourth proportional to 828.60, 1,242.54 and 251.34 is: 376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    828.60 : 1,242.54 = 251.34 : x
  2. Step 2: Convert to fraction form
    828.60/1,242.54 = 251.34/x
  3. Step 3: Cross multiply
    828.60x = 1,242.54 × 251.34
  4. Step 4: Simplify right side
    828.60x = 312,300.00
  5. Step 5: Solve for x
    x = 312,300.00/828.60
  6. Step 6: Final answer
    x = 376.90

Related Problems

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.