Finding the Fourth Proportional to 212,591.08, 318,941.39 and 79,472.31
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Solution
The fourth proportional to 212,591.08, 318,941.39 and 79,472.31 is: 119,228.94
Step by Step Solution
- Step 1: Write the proportion equation
212,591.08 : 318,941.39 = 79,472.31 : x - Step 2: Convert to fraction form
212,591.08/318,941.39 = 79,472.31/x - Step 3: Cross multiply
212,591.08x = 318,941.39 × 79,472.31 - Step 4: Simplify right side
212,591.08x = 25,347,009,017.91 - Step 5: Solve for x
x = 25,347,009,017.91/212,591.08 - Step 6: Final answer
x = 119,228.94
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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.