Finding the Fourth Proportional to 219,782.73, 303,285.69 and 122,970.18
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Solution
The fourth proportional to 219,782.73, 303,285.69 and 122,970.18 is: 169,690.75
Step by Step Solution
- Step 1: Write the proportion equation
219,782.73 : 303,285.69 = 122,970.18 : x - Step 2: Convert to fraction form
219,782.73/303,285.69 = 122,970.18/x - Step 3: Cross multiply
219,782.73x = 303,285.69 × 122,970.18 - Step 4: Simplify right side
219,782.73x = 37,295,095,890.72 - Step 5: Solve for x
x = 37,295,095,890.72/219,782.73 - Step 6: Final answer
x = 169,690.75
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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.