Finding the Fourth Proportional to 228,596.08, 342,916.74 and 78,816.70
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Solution
The fourth proportional to 228,596.08, 342,916.74 and 78,816.70 is: 118,232.85
Step by Step Solution
- Step 1: Write the proportion equation
228,596.08 : 342,916.74 = 78,816.70 : x - Step 2: Convert to fraction form
228,596.08/342,916.74 = 78,816.70/x - Step 3: Cross multiply
228,596.08x = 342,916.74 × 78,816.70 - Step 4: Simplify right side
228,596.08x = 27,027,565,821.56 - Step 5: Solve for x
x = 27,027,565,821.56/228,596.08 - Step 6: Final answer
x = 118,232.85
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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.