Finding the Fourth Proportional to 228,990.24, 315,861.12 and 165,421.44
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Solution
The fourth proportional to 228,990.24, 315,861.12 and 165,421.44 is: 228,176.54
Step by Step Solution
- Step 1: Write the proportion equation
228,990.24 : 315,861.12 = 165,421.44 : x - Step 2: Convert to fraction form
228,990.24/315,861.12 = 165,421.44/x - Step 3: Cross multiply
228,990.24x = 315,861.12 × 165,421.44 - Step 4: Simplify right side
228,990.24x = 52,250,201,310.41 - Step 5: Solve for x
x = 52,250,201,310.41/228,990.24 - Step 6: Final answer
x = 228,176.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.