Finding the Fourth Proportional to 219,693.79, 303,163.15 and 122,880.90
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Solution
The fourth proportional to 219,693.79, 303,163.15 and 122,880.90 is: 169,567.65
Step by Step Solution
- Step 1: Write the proportion equation
219,693.79 : 303,163.15 = 122,880.90 : x - Step 2: Convert to fraction form
219,693.79/303,163.15 = 122,880.90/x - Step 3: Cross multiply
219,693.79x = 303,163.15 × 122,880.90 - Step 4: Simplify right side
219,693.79x = 37,252,960,718.84 - Step 5: Solve for x
x = 37,252,960,718.84/219,693.79 - Step 6: Final answer
x = 169,567.65
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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.