Finding the Fourth Proportional to 305,129.88, 421,099.74 and 176,091.48
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Solution
The fourth proportional to 305,129.88, 421,099.74 and 176,091.48 is: 243,018.08
Step by Step Solution
- Step 1: Write the proportion equation
305,129.88 : 421,099.74 = 176,091.48 : x - Step 2: Convert to fraction form
305,129.88/421,099.74 = 176,091.48/x - Step 3: Cross multiply
305,129.88x = 421,099.74 × 176,091.48 - Step 4: Simplify right side
305,129.88x = 74,152,076,444.22 - Step 5: Solve for x
x = 74,152,076,444.22/305,129.88 - Step 6: Final answer
x = 243,018.08
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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.