Finding the Fourth Proportional to 420,896.16, 580,815.36 and 229,872.96
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Solution
The fourth proportional to 420,896.16, 580,815.36 and 229,872.96 is: 317,213.03
Step by Step Solution
- Step 1: Write the proportion equation
420,896.16 : 580,815.36 = 229,872.96 : x - Step 2: Convert to fraction form
420,896.16/580,815.36 = 229,872.96/x - Step 3: Cross multiply
420,896.16x = 580,815.36 × 229,872.96 - Step 4: Simplify right side
420,896.16x = 133,513,746,016.67 - Step 5: Solve for x
x = 133,513,746,016.67/420,896.16 - Step 6: Final answer
x = 317,213.03
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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.