Finding the Fourth Proportional to 208,879.70, 313,319.55 and 205,423.70
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Solution
The fourth proportional to 208,879.70, 313,319.55 and 205,423.70 is: 308,135.55
Step by Step Solution
- Step 1: Write the proportion equation
208,879.70 : 313,319.55 = 205,423.70 : x - Step 2: Convert to fraction form
208,879.70/313,319.55 = 205,423.70/x - Step 3: Cross multiply
208,879.70x = 313,319.55 × 205,423.70 - Step 4: Simplify right side
208,879.70x = 64,363,261,243.34 - Step 5: Solve for x
x = 64,363,261,243.34/208,879.70 - Step 6: Final answer
x = 308,135.55
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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.