Finding the Fourth Proportional to 228,958.70, 343,438.05 and 71,203.10
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Solution
The fourth proportional to 228,958.70, 343,438.05 and 71,203.10 is: 106,804.65
Step by Step Solution
- Step 1: Write the proportion equation
228,958.70 : 343,438.05 = 71,203.10 : x - Step 2: Convert to fraction form
228,958.70/343,438.05 = 71,203.10/x - Step 3: Cross multiply
228,958.70x = 343,438.05 × 71,203.10 - Step 4: Simplify right side
228,958.70x = 24,453,853,817.96 - Step 5: Solve for x
x = 24,453,853,817.96/228,958.70 - Step 6: Final answer
x = 106,804.65
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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.