Finding the Fourth Proportional to 215,319.68, 322,979.76 and 96,968.96
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Solution
The fourth proportional to 215,319.68, 322,979.76 and 96,968.96 is: 145,453.55
Step by Step Solution
- Step 1: Write the proportion equation
215,319.68 : 322,979.76 = 96,968.96 : x - Step 2: Convert to fraction form
215,319.68/322,979.76 = 96,968.96/x - Step 3: Cross multiply
215,319.68x = 322,979.76 × 96,968.96 - Step 4: Simplify right side
215,319.68x = 31,319,011,428.25 - Step 5: Solve for x
x = 31,319,011,428.25/215,319.68 - Step 6: Final answer
x = 145,453.55
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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.