Finding the Fourth Proportional to 143,880.70, 215,843.28 and 49,088.68
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Solution
The fourth proportional to 143,880.70, 215,843.28 and 49,088.68 is: 73,640.60
Step by Step Solution
- Step 1: Write the proportion equation
143,880.70 : 215,843.28 = 49,088.68 : x - Step 2: Convert to fraction form
143,880.70/215,843.28 = 49,088.68/x - Step 3: Cross multiply
143,880.70x = 215,843.28 × 49,088.68 - Step 4: Simplify right side
143,880.70x = 10,595,461,702.07 - Step 5: Solve for x
x = 10,595,461,702.07/143,880.70 - Step 6: Final answer
x = 73,640.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.