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Finding the Fourth Proportional to 543,807.80, 816,003.30 and 228,296.60

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Solution

The fourth proportional to 543,807.80, 816,003.30 and 228,296.60 is: 342,567.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,807.80 : 816,003.30 = 228,296.60 : x
  2. Step 2: Convert to fraction form
    543,807.80/816,003.30 = 228,296.60/x
  3. Step 3: Cross multiply
    543,807.80x = 816,003.30 × 228,296.60
  4. Step 4: Simplify right side
    543,807.80x = 186,290,778,978.78
  5. Step 5: Solve for x
    x = 186,290,778,978.78/543,807.80
  6. Step 6: Final answer
    x = 342,567.32

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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.