Finding the Fourth Proportional to 290,109.30, 435,163.95 and 227,123.70
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Solution
The fourth proportional to 290,109.30, 435,163.95 and 227,123.70 is: 340,685.55
Step by Step Solution
- Step 1: Write the proportion equation
290,109.30 : 435,163.95 = 227,123.70 : x - Step 2: Convert to fraction form
290,109.30/435,163.95 = 227,123.70/x - Step 3: Cross multiply
290,109.30x = 435,163.95 × 227,123.70 - Step 4: Simplify right side
290,109.30x = 98,836,046,430.62 - Step 5: Solve for x
x = 98,836,046,430.62/290,109.30 - Step 6: Final answer
x = 340,685.55
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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.