Finding the Fourth Proportional to 212,369.67, 318,456.36 and 79,214.31
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Solution
The fourth proportional to 212,369.67, 318,456.36 and 79,214.31 is: 118,784.86
Step by Step Solution
- Step 1: Write the proportion equation
212,369.67 : 318,456.36 = 79,214.31 : x - Step 2: Convert to fraction form
212,369.67/318,456.36 = 79,214.31/x - Step 3: Cross multiply
212,369.67x = 318,456.36 × 79,214.31 - Step 4: Simplify right side
212,369.67x = 25,226,300,822.51 - Step 5: Solve for x
x = 25,226,300,822.51/212,369.67 - Step 6: Final answer
x = 118,784.86
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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.