Home / 391,214.48-539,888.84-221,444.96

Finding the Fourth Proportional to 391,214.48, 539,888.84 and 221,444.96

Calculator

Solution

The fourth proportional to 391,214.48, 539,888.84 and 221,444.96 is: 305,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,214.48 : 539,888.84 = 221,444.96 : x
  2. Step 2: Convert to fraction form
    391,214.48/539,888.84 = 221,444.96/x
  3. Step 3: Cross multiply
    391,214.48x = 539,888.84 × 221,444.96
  4. Step 4: Simplify right side
    391,214.48x = 119,555,662,578.25
  5. Step 5: Solve for x
    x = 119,555,662,578.25/391,214.48
  6. Step 6: Final answer
    x = 305,601.32

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.