Finding the Fourth Proportional to 217,432.44, 300,056.18 and 121,941.18
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Solution
The fourth proportional to 217,432.44, 300,056.18 and 121,941.18 is: 168,278.50
Step by Step Solution
- Step 1: Write the proportion equation
217,432.44 : 300,056.18 = 121,941.18 : x - Step 2: Convert to fraction form
217,432.44/300,056.18 = 121,941.18/x - Step 3: Cross multiply
217,432.44x = 300,056.18 × 121,941.18 - Step 4: Simplify right side
217,432.44x = 36,589,204,045.79 - Step 5: Solve for x
x = 36,589,204,045.79/217,432.44 - Step 6: Final answer
x = 168,278.50
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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.