Finding the Fourth Proportional to 215,910.74, 297,957.35 and 120,423.62
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Solution
The fourth proportional to 215,910.74, 297,957.35 and 120,423.62 is: 166,184.89
Step by Step Solution
- Step 1: Write the proportion equation
215,910.74 : 297,957.35 = 120,423.62 : x - Step 2: Convert to fraction form
215,910.74/297,957.35 = 120,423.62/x - Step 3: Cross multiply
215,910.74x = 297,957.35 × 120,423.62 - Step 4: Simplify right side
215,910.74x = 35,881,102,692.61 - Step 5: Solve for x
x = 35,881,102,692.61/215,910.74 - Step 6: Final answer
x = 166,184.89
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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.