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Finding the Fourth Proportional to 301,211.20, 451,816.80 and 165,908.80

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Solution

The fourth proportional to 301,211.20, 451,816.80 and 165,908.80 is: 248,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,211.20 : 451,816.80 = 165,908.80 : x
  2. Step 2: Convert to fraction form
    301,211.20/451,816.80 = 165,908.80/x
  3. Step 3: Cross multiply
    301,211.20x = 451,816.80 × 165,908.80
  4. Step 4: Simplify right side
    301,211.20x = 74,960,383,107.84
  5. Step 5: Solve for x
    x = 74,960,383,107.84/301,211.20
  6. Step 6: Final answer
    x = 248,863.20

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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.