Finding the Fourth Proportional to 310,331.36, 428,305.92 and 183,020.96
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Solution
The fourth proportional to 310,331.36, 428,305.92 and 183,020.96 is: 252,597.61
Step by Step Solution
- Step 1: Write the proportion equation
310,331.36 : 428,305.92 = 183,020.96 : x - Step 2: Convert to fraction form
310,331.36/428,305.92 = 183,020.96/x - Step 3: Cross multiply
310,331.36x = 428,305.92 × 183,020.96 - Step 4: Simplify right side
310,331.36x = 78,388,960,652.08 - Step 5: Solve for x
x = 78,388,960,652.08/310,331.36 - Step 6: Final answer
x = 252,597.61
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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.