Finding the Fourth Proportional to 319,620.79, 441,072.84 and 176,377.69
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Solution
The fourth proportional to 319,620.79, 441,072.84 and 176,377.69 is: 243,399.09
Step by Step Solution
- Step 1: Write the proportion equation
319,620.79 : 441,072.84 = 176,377.69 : x - Step 2: Convert to fraction form
319,620.79/441,072.84 = 176,377.69/x - Step 3: Cross multiply
319,620.79x = 441,072.84 × 176,377.69 - Step 4: Simplify right side
319,620.79x = 77,795,408,640.94 - Step 5: Solve for x
x = 77,795,408,640.94/319,620.79 - Step 6: Final answer
x = 243,399.09
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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.