Finding the Fourth Proportional to 415,234.88, 623,239.79 and 212,982.83
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Solution
The fourth proportional to 415,234.88, 623,239.79 and 212,982.83 is: 319,672.99
Step by Step Solution
- Step 1: Write the proportion equation
415,234.88 : 623,239.79 = 212,982.83 : x - Step 2: Convert to fraction form
415,234.88/623,239.79 = 212,982.83/x - Step 3: Cross multiply
415,234.88x = 623,239.79 × 212,982.83 - Step 4: Simplify right side
415,234.88x = 132,739,375,072.32 - Step 5: Solve for x
x = 132,739,375,072.32/415,234.88 - Step 6: Final answer
x = 319,672.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.