Finding the Fourth Proportional to 331,161.98, 457,074.74 and 202,072.79
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Solution
The fourth proportional to 331,161.98, 457,074.74 and 202,072.79 is: 278,903.91
Step by Step Solution
- Step 1: Write the proportion equation
331,161.98 : 457,074.74 = 202,072.79 : x - Step 2: Convert to fraction form
331,161.98/457,074.74 = 202,072.79/x - Step 3: Cross multiply
331,161.98x = 457,074.74 × 202,072.79 - Step 4: Simplify right side
331,161.98x = 92,362,369,598.19 - Step 5: Solve for x
x = 92,362,369,598.19/331,161.98 - Step 6: Final answer
x = 278,903.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.