Home / 566.18-781.33-317.55

Finding the Fourth Proportional to 566.18, 781.33 and 317.55

Calculator

Solution

The fourth proportional to 566.18, 781.33 and 317.55 is: 438.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.18 : 781.33 = 317.55 : x
  2. Step 2: Convert to fraction form
    566.18/781.33 = 317.55/x
  3. Step 3: Cross multiply
    566.18x = 781.33 × 317.55
  4. Step 4: Simplify right side
    566.18x = 248,111.34
  5. Step 5: Solve for x
    x = 248,111.34/566.18
  6. Step 6: Final answer
    x = 438.22

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.