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Finding the Fourth Proportional to 366,291.99, 550,280.12 and 258,469.47

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Solution

The fourth proportional to 366,291.99, 550,280.12 and 258,469.47 is: 388,298.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,291.99 : 550,280.12 = 258,469.47 : x
  2. Step 2: Convert to fraction form
    366,291.99/550,280.12 = 258,469.47/x
  3. Step 3: Cross multiply
    366,291.99x = 550,280.12 × 258,469.47
  4. Step 4: Simplify right side
    366,291.99x = 142,230,609,675.59
  5. Step 5: Solve for x
    x = 142,230,609,675.59/366,291.99
  6. Step 6: Final answer
    x = 388,298.44

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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.