Finding the Fourth Proportional to 212,544.79, 318,467.26 and 148,509.43
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Solution
The fourth proportional to 212,544.79, 318,467.26 and 148,509.43 is: 222,519.65
Step by Step Solution
- Step 1: Write the proportion equation
212,544.79 : 318,467.26 = 148,509.43 : x - Step 2: Convert to fraction form
212,544.79/318,467.26 = 148,509.43/x - Step 3: Cross multiply
212,544.79x = 318,467.26 × 148,509.43 - Step 4: Simplify right side
212,544.79x = 47,295,391,256.26 - Step 5: Solve for x
x = 47,295,391,256.26/212,544.79 - Step 6: Final answer
x = 222,519.65
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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.