Home / 342.64-513.90-99.12

Finding the Fourth Proportional to 342.64, 513.90 and 99.12

Calculator

Solution

The fourth proportional to 342.64, 513.90 and 99.12 is: 148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.64 : 513.90 = 99.12 : x
  2. Step 2: Convert to fraction form
    342.64/513.90 = 99.12/x
  3. Step 3: Cross multiply
    342.64x = 513.90 × 99.12
  4. Step 4: Simplify right side
    342.64x = 50,937.77
  5. Step 5: Solve for x
    x = 50,937.77/342.64
  6. Step 6: Final answer
    x = 148.66

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.