Home / 291.08-436.72-98.84

Finding the Fourth Proportional to 291.08, 436.72 and 98.84

Calculator

Solution

The fourth proportional to 291.08, 436.72 and 98.84 is: 148.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    291.08 : 436.72 = 98.84 : x
  2. Step 2: Convert to fraction form
    291.08/436.72 = 98.84/x
  3. Step 3: Cross multiply
    291.08x = 436.72 × 98.84
  4. Step 4: Simplify right side
    291.08x = 43,165.40
  5. Step 5: Solve for x
    x = 43,165.40/291.08
  6. Step 6: Final answer
    x = 148.29

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.