Finding the Fourth Proportional to 217,475.34, 300,115.98 and 121,979.94
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Solution
The fourth proportional to 217,475.34, 300,115.98 and 121,979.94 is: 168,332.32
Step by Step Solution
- Step 1: Write the proportion equation
217,475.34 : 300,115.98 = 121,979.94 : x - Step 2: Convert to fraction form
217,475.34/300,115.98 = 121,979.94/x - Step 3: Cross multiply
217,475.34x = 300,115.98 × 121,979.94 - Step 4: Simplify right side
217,475.34x = 36,608,129,233.44 - Step 5: Solve for x
x = 36,608,129,233.44/217,475.34 - Step 6: Final answer
x = 168,332.32
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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.