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Finding the Fourth Proportional to 300,012.80, 450,134.40 and 295,289.60

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Solution

The fourth proportional to 300,012.80, 450,134.40 and 295,289.60 is: 443,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,012.80 : 450,134.40 = 295,289.60 : x
  2. Step 2: Convert to fraction form
    300,012.80/450,134.40 = 295,289.60/x
  3. Step 3: Cross multiply
    300,012.80x = 450,134.40 × 295,289.60
  4. Step 4: Simplify right side
    300,012.80x = 132,920,006,922.24
  5. Step 5: Solve for x
    x = 132,920,006,922.24/300,012.80
  6. Step 6: Final answer
    x = 443,047.79

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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.