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Finding the Fourth Proportional to 356,726.88, 534,620.88 and 199,029.60

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Solution

The fourth proportional to 356,726.88, 534,620.88 and 199,029.60 is: 298,282.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,726.88 : 534,620.88 = 199,029.60 : x
  2. Step 2: Convert to fraction form
    356,726.88/534,620.88 = 199,029.60/x
  3. Step 3: Cross multiply
    356,726.88x = 534,620.88 × 199,029.60
  4. Step 4: Simplify right side
    356,726.88x = 106,405,379,898.05
  5. Step 5: Solve for x
    x = 106,405,379,898.05/356,726.88
  6. Step 6: Final answer
    x = 298,282.48

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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.