Finding the Fourth Proportional to 192,502.80, 288,748.80 and 87,321.60
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Solution
The fourth proportional to 192,502.80, 288,748.80 and 87,321.60 is: 130,979.95
Step by Step Solution
- Step 1: Write the proportion equation
192,502.80 : 288,748.80 = 87,321.60 : x - Step 2: Convert to fraction form
192,502.80/288,748.80 = 87,321.60/x - Step 3: Cross multiply
192,502.80x = 288,748.80 × 87,321.60 - Step 4: Simplify right side
192,502.80x = 25,214,007,214.08 - Step 5: Solve for x
x = 25,214,007,214.08/192,502.80 - Step 6: Final answer
x = 130,979.95
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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.