Finding the Fourth Proportional to 397,657.35, 548,769.42 and 216,370.53
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Solution
The fourth proportional to 397,657.35, 548,769.42 and 216,370.53 is: 298,592.57
Step by Step Solution
- Step 1: Write the proportion equation
397,657.35 : 548,769.42 = 216,370.53 : x - Step 2: Convert to fraction form
397,657.35/548,769.42 = 216,370.53/x - Step 3: Cross multiply
397,657.35x = 548,769.42 × 216,370.53 - Step 4: Simplify right side
397,657.35x = 118,737,530,253.19 - Step 5: Solve for x
x = 118,737,530,253.19/397,657.35 - Step 6: Final answer
x = 298,592.57
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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.