Finding the Fourth Proportional to 278,436.96, 417,663.63 and 68,074.88
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Solution
The fourth proportional to 278,436.96, 417,663.63 and 68,074.88 is: 102,114.31
Step by Step Solution
- Step 1: Write the proportion equation
278,436.96 : 417,663.63 = 68,074.88 : x - Step 2: Convert to fraction form
278,436.96/417,663.63 = 68,074.88/x - Step 3: Cross multiply
278,436.96x = 417,663.63 × 68,074.88 - Step 4: Simplify right side
278,436.96x = 28,432,399,404.30 - Step 5: Solve for x
x = 28,432,399,404.30/278,436.96 - Step 6: Final answer
x = 102,114.31
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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.