Finding the Fourth Proportional to 282,545.26, 389,916.59 and 153,486.14
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Solution
The fourth proportional to 282,545.26, 389,916.59 and 153,486.14 is: 211,813.11
Step by Step Solution
- Step 1: Write the proportion equation
282,545.26 : 389,916.59 = 153,486.14 : x - Step 2: Convert to fraction form
282,545.26/389,916.59 = 153,486.14/x - Step 3: Cross multiply
282,545.26x = 389,916.59 × 153,486.14 - Step 4: Simplify right side
282,545.26x = 59,846,789,604.05 - Step 5: Solve for x
x = 59,846,789,604.05/282,545.26 - Step 6: Final answer
x = 211,813.11
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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.