Finding the Fourth Proportional to 212,631.97, 318,837.20 and 100,282.02
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Solution
The fourth proportional to 212,631.97, 318,837.20 and 100,282.02 is: 150,370.79
Step by Step Solution
- Step 1: Write the proportion equation
212,631.97 : 318,837.20 = 100,282.02 : x - Step 2: Convert to fraction form
212,631.97/318,837.20 = 100,282.02/x - Step 3: Cross multiply
212,631.97x = 318,837.20 × 100,282.02 - Step 4: Simplify right side
212,631.97x = 31,973,637,710.24 - Step 5: Solve for x
x = 31,973,637,710.24/212,631.97 - Step 6: Final answer
x = 150,370.79
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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.