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Finding the Fourth Proportional to 300,721.50, 450,907.26 and 113,747.58

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Solution

The fourth proportional to 300,721.50, 450,907.26 and 113,747.58 is: 170,555.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,721.50 : 450,907.26 = 113,747.58 : x
  2. Step 2: Convert to fraction form
    300,721.50/450,907.26 = 113,747.58/x
  3. Step 3: Cross multiply
    300,721.50x = 450,907.26 × 113,747.58
  4. Step 4: Simplify right side
    300,721.50x = 51,289,609,629.43
  5. Step 5: Solve for x
    x = 51,289,609,629.43/300,721.50
  6. Step 6: Final answer
    x = 170,555.18

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1.5x scale

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.