Finding the Fourth Proportional to 319,709.31, 441,202.49 and 176,469.42
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Solution
The fourth proportional to 319,709.31, 441,202.49 and 176,469.42 is: 243,529.81
Step by Step Solution
- Step 1: Write the proportion equation
319,709.31 : 441,202.49 = 176,469.42 : x - Step 2: Convert to fraction form
319,709.31/441,202.49 = 176,469.42/x - Step 3: Cross multiply
319,709.31x = 441,202.49 × 176,469.42 - Step 4: Simplify right side
319,709.31x = 77,858,746,630.51 - Step 5: Solve for x
x = 77,858,746,630.51/319,709.31 - Step 6: Final answer
x = 243,529.81
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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.