Home / 278,251.20-417,392.96-78,554.87

Finding the Fourth Proportional to 278,251.20, 417,392.96 and 78,554.87

Calculator

Solution

The fourth proportional to 278,251.20, 417,392.96 and 78,554.87 is: 117,836.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,251.20 : 417,392.96 = 78,554.87 : x
  2. Step 2: Convert to fraction form
    278,251.20/417,392.96 = 78,554.87/x
  3. Step 3: Cross multiply
    278,251.20x = 417,392.96 × 78,554.87
  4. Step 4: Simplify right side
    278,251.20x = 32,788,248,797.20
  5. Step 5: Solve for x
    x = 32,788,248,797.20/278,251.20
  6. Step 6: Final answer
    x = 117,836.86

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.