Home / 353,312.24-487,410.06-209,990.84

Finding the Fourth Proportional to 353,312.24, 487,410.06 and 209,990.84

Calculator

Solution

The fourth proportional to 353,312.24, 487,410.06 and 209,990.84 is: 289,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,312.24 : 487,410.06 = 209,990.84 : x
  2. Step 2: Convert to fraction form
    353,312.24/487,410.06 = 209,990.84/x
  3. Step 3: Cross multiply
    353,312.24x = 487,410.06 × 209,990.84
  4. Step 4: Simplify right side
    353,312.24x = 102,351,647,923.85
  5. Step 5: Solve for x
    x = 102,351,647,923.85/353,312.24
  6. Step 6: Final answer
    x = 289,691.77

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.