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Finding the Fourth Proportional to 367,879.80, 552,029.28 and 143,211.09

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Solution

The fourth proportional to 367,879.80, 552,029.28 and 143,211.09 is: 214,898.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,879.80 : 552,029.28 = 143,211.09 : x
  2. Step 2: Convert to fraction form
    367,879.80/552,029.28 = 143,211.09/x
  3. Step 3: Cross multiply
    367,879.80x = 552,029.28 × 143,211.09
  4. Step 4: Simplify right side
    367,879.80x = 79,056,714,900.72
  5. Step 5: Solve for x
    x = 79,056,714,900.72/367,879.80
  6. Step 6: Final answer
    x = 214,898.22

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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.