Home / 262,421.47-393,629.61-120,226.41

Finding the Fourth Proportional to 262,421.47, 393,629.61 and 120,226.41

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Solution

The fourth proportional to 262,421.47, 393,629.61 and 120,226.41 is: 180,338.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,421.47 : 393,629.61 = 120,226.41 : x
  2. Step 2: Convert to fraction form
    262,421.47/393,629.61 = 120,226.41/x
  3. Step 3: Cross multiply
    262,421.47x = 393,629.61 × 120,226.41
  4. Step 4: Simplify right side
    262,421.47x = 47,324,672,911.85
  5. Step 5: Solve for x
    x = 47,324,672,911.85/262,421.47
  6. Step 6: Final answer
    x = 180,338.42

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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.