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Finding the Fourth Proportional to 543,879.80, 816,111.30 and 228,368.60

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Solution

The fourth proportional to 543,879.80, 816,111.30 and 228,368.60 is: 342,675.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,879.80 : 816,111.30 = 228,368.60 : x
  2. Step 2: Convert to fraction form
    543,879.80/816,111.30 = 228,368.60/x
  3. Step 3: Cross multiply
    543,879.80x = 816,111.30 × 228,368.60
  4. Step 4: Simplify right side
    543,879.80x = 186,374,195,025.18
  5. Step 5: Solve for x
    x = 186,374,195,025.18/543,879.80
  6. Step 6: Final answer
    x = 342,675.34

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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.