Home / 453.74-680.54-145.53

Finding the Fourth Proportional to 453.74, 680.54 and 145.53

Calculator

Solution

The fourth proportional to 453.74, 680.54 and 145.53 is: 218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.74 : 680.54 = 145.53 : x
  2. Step 2: Convert to fraction form
    453.74/680.54 = 145.53/x
  3. Step 3: Cross multiply
    453.74x = 680.54 × 145.53
  4. Step 4: Simplify right side
    453.74x = 99,038.26
  5. Step 5: Solve for x
    x = 99,038.26/453.74
  6. Step 6: Final answer
    x = 218.27

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.