Finding the Fourth Proportional to 98,328.38, 147,516.26 and 28,207.08
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Solution
The fourth proportional to 98,328.38, 147,516.26 and 28,207.08 is: 42,317.42
Step by Step Solution
- Step 1: Write the proportion equation
98,328.38 : 147,516.26 = 28,207.08 : x - Step 2: Convert to fraction form
98,328.38/147,516.26 = 28,207.08/x - Step 3: Cross multiply
98,328.38x = 147,516.26 × 28,207.08 - Step 4: Simplify right side
98,328.38x = 4,161,002,806.09 - Step 5: Solve for x
x = 4,161,002,806.09/98,328.38 - Step 6: Final answer
x = 42,317.42
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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.