Finding the Fourth Proportional to 215,702.55, 297,672.44 and 120,205.98
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Solution
The fourth proportional to 215,702.55, 297,672.44 and 120,205.98 is: 165,885.88
Step by Step Solution
- Step 1: Write the proportion equation
215,702.55 : 297,672.44 = 120,205.98 : x - Step 2: Convert to fraction form
215,702.55/297,672.44 = 120,205.98/x - Step 3: Cross multiply
215,702.55x = 297,672.44 × 120,205.98 - Step 4: Simplify right side
215,702.55x = 35,782,006,768.16 - Step 5: Solve for x
x = 35,782,006,768.16/215,702.55 - Step 6: Final answer
x = 165,885.88
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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.