Finding the Fourth Proportional to 215,809.18, 323,702.08 and 66,049.49
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Solution
The fourth proportional to 215,809.18, 323,702.08 and 66,049.49 is: 99,070.66
Step by Step Solution
- Step 1: Write the proportion equation
215,809.18 : 323,702.08 = 66,049.49 : x - Step 2: Convert to fraction form
215,809.18/323,702.08 = 66,049.49/x - Step 3: Cross multiply
215,809.18x = 323,702.08 × 66,049.49 - Step 4: Simplify right side
215,809.18x = 21,380,357,295.94 - Step 5: Solve for x
x = 21,380,357,295.94/215,809.18 - Step 6: Final answer
x = 99,070.66
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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.