Finding the Fourth Proportional to 299,715.70, 449,746.35 and 112,861.30
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Solution
The fourth proportional to 299,715.70, 449,746.35 and 112,861.30 is: 169,357.02
Step by Step Solution
- Step 1: Write the proportion equation
299,715.70 : 449,746.35 = 112,861.30 : x - Step 2: Convert to fraction form
299,715.70/449,746.35 = 112,861.30/x - Step 3: Cross multiply
299,715.70x = 449,746.35 × 112,861.30 - Step 4: Simplify right side
299,715.70x = 50,758,957,731.26 - Step 5: Solve for x
x = 50,758,957,731.26/299,715.70 - Step 6: Final answer
x = 169,357.02
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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.