Home / 208,538.02-312,850.77-90,226.18

Finding the Fourth Proportional to 208,538.02, 312,850.77 and 90,226.18

Calculator

Solution

The fourth proportional to 208,538.02, 312,850.77 and 90,226.18 is: 135,358.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,538.02 : 312,850.77 = 90,226.18 : x
  2. Step 2: Convert to fraction form
    208,538.02/312,850.77 = 90,226.18/x
  3. Step 3: Cross multiply
    208,538.02x = 312,850.77 × 90,226.18
  4. Step 4: Simplify right side
    208,538.02x = 28,227,329,887.16
  5. Step 5: Solve for x
    x = 28,227,329,887.16/208,538.02
  6. Step 6: Final answer
    x = 135,358.19

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.