Finding the Fourth Proportional to 396,953.40, 595,430.10 and 147,583.80
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Solution
The fourth proportional to 396,953.40, 595,430.10 and 147,583.80 is: 221,375.70
Step by Step Solution
- Step 1: Write the proportion equation
396,953.40 : 595,430.10 = 147,583.80 : x - Step 2: Convert to fraction form
396,953.40/595,430.10 = 147,583.80/x - Step 3: Cross multiply
396,953.40x = 595,430.10 × 147,583.80 - Step 4: Simplify right side
396,953.40x = 87,875,836,792.38 - Step 5: Solve for x
x = 87,875,836,792.38/396,953.40 - Step 6: Final answer
x = 221,375.70
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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.