Home / 385.12-531.03-245.01

Finding the Fourth Proportional to 385.12, 531.03 and 245.01

Calculator

Solution

The fourth proportional to 385.12, 531.03 and 245.01 is: 337.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.12 : 531.03 = 245.01 : x
  2. Step 2: Convert to fraction form
    385.12/531.03 = 245.01/x
  3. Step 3: Cross multiply
    385.12x = 531.03 × 245.01
  4. Step 4: Simplify right side
    385.12x = 130,109.13
  5. Step 5: Solve for x
    x = 130,109.13/385.12
  6. Step 6: Final answer
    x = 337.84

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.