Finding the Fourth Proportional to 215,909.39, 323,430.36 and 107,512.19
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Solution
The fourth proportional to 215,909.39, 323,430.36 and 107,512.19 is: 161,052.31
Step by Step Solution
- Step 1: Write the proportion equation
215,909.39 : 323,430.36 = 107,512.19 : x - Step 2: Convert to fraction form
215,909.39/323,430.36 = 107,512.19/x - Step 3: Cross multiply
215,909.39x = 323,430.36 × 107,512.19 - Step 4: Simplify right side
215,909.39x = 34,772,705,508.63 - Step 5: Solve for x
x = 34,772,705,508.63/215,909.39 - Step 6: Final answer
x = 161,052.31
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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.