Finding the Fourth Proportional to 305,800.74, 458,313.60 and 172,755.96
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Solution
The fourth proportional to 305,800.74, 458,313.60 and 172,755.96 is: 258,915.02
Step by Step Solution
- Step 1: Write the proportion equation
305,800.74 : 458,313.60 = 172,755.96 : x - Step 2: Convert to fraction form
305,800.74/458,313.60 = 172,755.96/x - Step 3: Cross multiply
305,800.74x = 458,313.60 × 172,755.96 - Step 4: Simplify right side
305,800.74x = 79,176,405,949.06 - Step 5: Solve for x
x = 79,176,405,949.06/305,800.74 - Step 6: Final answer
x = 258,915.02
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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.