Finding the Fourth Proportional to 212,765.70, 319,148.55 and 192,029.70
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Solution
The fourth proportional to 212,765.70, 319,148.55 and 192,029.70 is: 288,044.55
Step by Step Solution
- Step 1: Write the proportion equation
212,765.70 : 319,148.55 = 192,029.70 : x - Step 2: Convert to fraction form
212,765.70/319,148.55 = 192,029.70/x - Step 3: Cross multiply
212,765.70x = 319,148.55 × 192,029.70 - Step 4: Simplify right side
212,765.70x = 61,286,000,311.94 - Step 5: Solve for x
x = 61,286,000,311.94/212,765.70 - Step 6: Final answer
x = 288,044.55
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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.