Finding the Fourth Proportional to 412,349.80, 618,438.30 and 202,138.60
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Solution
The fourth proportional to 412,349.80, 618,438.30 and 202,138.60 is: 303,165.55
Step by Step Solution
- Step 1: Write the proportion equation
412,349.80 : 618,438.30 = 202,138.60 : x - Step 2: Convert to fraction form
412,349.80/618,438.30 = 202,138.60/x - Step 3: Cross multiply
412,349.80x = 618,438.30 × 202,138.60 - Step 4: Simplify right side
412,349.80x = 125,010,252,148.38 - Step 5: Solve for x
x = 125,010,252,148.38/412,349.80 - Step 6: Final answer
x = 303,165.55
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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.