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Finding the Fourth Proportional to 366,286.99, 550,272.59 and 258,464.45

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Solution

The fourth proportional to 366,286.99, 550,272.59 and 258,464.45 is: 388,290.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,286.99 : 550,272.59 = 258,464.45 : x
  2. Step 2: Convert to fraction form
    366,286.99/550,272.59 = 258,464.45/x
  3. Step 3: Cross multiply
    366,286.99x = 550,272.59 × 258,464.45
  4. Step 4: Simplify right side
    366,286.99x = 142,225,902,324.43
  5. Step 5: Solve for x
    x = 142,225,902,324.43/366,286.99
  6. Step 6: Final answer
    x = 388,290.89

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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.