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Finding the Fourth Proportional to 378,631.03, 566,940.51 and 228,668.44

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Solution

The fourth proportional to 378,631.03, 566,940.51 and 228,668.44 is: 342,395.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,631.03 : 566,940.51 = 228,668.44 : x
  2. Step 2: Convert to fraction form
    378,631.03/566,940.51 = 228,668.44/x
  3. Step 3: Cross multiply
    378,631.03x = 566,940.51 × 228,668.44
  4. Step 4: Simplify right side
    378,631.03x = 129,641,401,994.50
  5. Step 5: Solve for x
    x = 129,641,401,994.50/378,631.03
  6. Step 6: Final answer
    x = 342,395.08

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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.