Home / 428,995.08-643,493.40-176,099.31

Finding the Fourth Proportional to 428,995.08, 643,493.40 and 176,099.31

Calculator

Solution

The fourth proportional to 428,995.08, 643,493.40 and 176,099.31 is: 264,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,995.08 : 643,493.40 = 176,099.31 : x
  2. Step 2: Convert to fraction form
    428,995.08/643,493.40 = 176,099.31/x
  3. Step 3: Cross multiply
    428,995.08x = 643,493.40 × 176,099.31
  4. Step 4: Simplify right side
    428,995.08x = 113,318,743,729.55
  5. Step 5: Solve for x
    x = 113,318,743,729.55/428,995.08
  6. Step 6: Final answer
    x = 264,149.29

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.