Finding the Fourth Proportional to 330,861.66, 456,224.36 and 228,709.78
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Solution
The fourth proportional to 330,861.66, 456,224.36 and 228,709.78 is: 315,367.37
Step by Step Solution
- Step 1: Write the proportion equation
330,861.66 : 456,224.36 = 228,709.78 : x - Step 2: Convert to fraction form
330,861.66/456,224.36 = 228,709.78/x - Step 3: Cross multiply
330,861.66x = 456,224.36 × 228,709.78 - Step 4: Simplify right side
330,861.66x = 104,342,973,006.24 - Step 5: Solve for x
x = 104,342,973,006.24/330,861.66 - Step 6: Final answer
x = 315,367.37
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1.5x scale
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.