Finding the Fourth Proportional to 384,872.84, 531,141.12 and 219,305.96
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Solution
The fourth proportional to 384,872.84, 531,141.12 and 219,305.96 is: 302,651.68
Step by Step Solution
- Step 1: Write the proportion equation
384,872.84 : 531,141.12 = 219,305.96 : x - Step 2: Convert to fraction form
384,872.84/531,141.12 = 219,305.96/x - Step 3: Cross multiply
384,872.84x = 531,141.12 × 219,305.96 - Step 4: Simplify right side
384,872.84x = 116,482,413,217.08 - Step 5: Solve for x
x = 116,482,413,217.08/384,872.84 - Step 6: Final answer
x = 302,651.68
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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.