Finding the Fourth Proportional to 207,349.20, 311,032.68 and 72,426.96
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Solution
The fourth proportional to 207,349.20, 311,032.68 and 72,426.96 is: 108,643.54
Step by Step Solution
- Step 1: Write the proportion equation
207,349.20 : 311,032.68 = 72,426.96 : x - Step 2: Convert to fraction form
207,349.20/311,032.68 = 72,426.96/x - Step 3: Cross multiply
207,349.20x = 311,032.68 × 72,426.96 - Step 4: Simplify right side
207,349.20x = 22,527,151,473.05 - Step 5: Solve for x
x = 22,527,151,473.05/207,349.20 - Step 6: Final answer
x = 108,643.54
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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.