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Finding the Fourth Proportional to 290,812.69, 436,296.80 and 263,052.37

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Solution

The fourth proportional to 290,812.69, 436,296.80 and 263,052.37 is: 394,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,812.69 : 436,296.80 = 263,052.37 : x
  2. Step 2: Convert to fraction form
    290,812.69/436,296.80 = 263,052.37/x
  3. Step 3: Cross multiply
    290,812.69x = 436,296.80 × 263,052.37
  4. Step 4: Simplify right side
    290,812.69x = 114,768,907,263.42
  5. Step 5: Solve for x
    x = 114,768,907,263.42/290,812.69
  6. Step 6: Final answer
    x = 394,648.90

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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.