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Finding the Fourth Proportional to 300,002.80, 449,485.80 and 253,346.80

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Solution

The fourth proportional to 300,002.80, 449,485.80 and 253,346.80 is: 379,582.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,002.80 : 449,485.80 = 253,346.80 : x
  2. Step 2: Convert to fraction form
    300,002.80/449,485.80 = 253,346.80/x
  3. Step 3: Cross multiply
    300,002.80x = 449,485.80 × 253,346.80
  4. Step 4: Simplify right side
    300,002.80x = 113,875,789,075.44
  5. Step 5: Solve for x
    x = 113,875,789,075.44/300,002.80
  6. Step 6: Final answer
    x = 379,582.42

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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.