Home / 297,977.40-447,138.90-111,007.80

Finding the Fourth Proportional to 297,977.40, 447,138.90 and 111,007.80

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Solution

The fourth proportional to 297,977.40, 447,138.90 and 111,007.80 is: 166,576.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,977.40 : 447,138.90 = 111,007.80 : x
  2. Step 2: Convert to fraction form
    297,977.40/447,138.90 = 111,007.80/x
  3. Step 3: Cross multiply
    297,977.40x = 447,138.90 × 111,007.80
  4. Step 4: Simplify right side
    297,977.40x = 49,635,905,583.42
  5. Step 5: Solve for x
    x = 49,635,905,583.42/297,977.40
  6. Step 6: Final answer
    x = 166,576.07

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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.