Home / 215.50-297.48-153.34

Finding the Fourth Proportional to 215.50, 297.48 and 153.34

Calculator

Solution

The fourth proportional to 215.50, 297.48 and 153.34 is: 211.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.50 : 297.48 = 153.34 : x
  2. Step 2: Convert to fraction form
    215.50/297.48 = 153.34/x
  3. Step 3: Cross multiply
    215.50x = 297.48 × 153.34
  4. Step 4: Simplify right side
    215.50x = 45,615.58
  5. Step 5: Solve for x
    x = 45,615.58/215.50
  6. Step 6: Final answer
    x = 211.67

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.