Home / 287.13-430.71-150.08

Finding the Fourth Proportional to 287.13, 430.71 and 150.08

Calculator

Solution

The fourth proportional to 287.13, 430.71 and 150.08 is: 225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    287.13 : 430.71 = 150.08 : x
  2. Step 2: Convert to fraction form
    287.13/430.71 = 150.08/x
  3. Step 3: Cross multiply
    287.13x = 430.71 × 150.08
  4. Step 4: Simplify right side
    287.13x = 64,640.21
  5. Step 5: Solve for x
    x = 64,640.21/287.13
  6. Step 6: Final answer
    x = 225.13

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.