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Finding the Fourth Proportional to 300,989.80, 451,488.54 and 207,470.44

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Solution

The fourth proportional to 300,989.80, 451,488.54 and 207,470.44 is: 311,208.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,989.80 : 451,488.54 = 207,470.44 : x
  2. Step 2: Convert to fraction form
    300,989.80/451,488.54 = 207,470.44/x
  3. Step 3: Cross multiply
    300,989.80x = 451,488.54 × 207,470.44
  4. Step 4: Simplify right side
    300,989.80x = 93,670,526,048.76
  5. Step 5: Solve for x
    x = 93,670,526,048.76/300,989.80
  6. Step 6: Final answer
    x = 311,208.31

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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.