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Finding the Fourth Proportional to 303,819.12, 454,771.89 and 208,491.93

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Solution

The fourth proportional to 303,819.12, 454,771.89 and 208,491.93 is: 312,081.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,819.12 : 454,771.89 = 208,491.93 : x
  2. Step 2: Convert to fraction form
    303,819.12/454,771.89 = 208,491.93/x
  3. Step 3: Cross multiply
    303,819.12x = 454,771.89 × 208,491.93
  4. Step 4: Simplify right side
    303,819.12x = 94,816,269,055.85
  5. Step 5: Solve for x
    x = 94,816,269,055.85/303,819.12
  6. Step 6: Final answer
    x = 312,081.31

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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.