Finding the Fourth Proportional to 271,865.80, 407,798.70 and 258,743.80
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Solution
The fourth proportional to 271,865.80, 407,798.70 and 258,743.80 is: 388,115.70
Step by Step Solution
- Step 1: Write the proportion equation
271,865.80 : 407,798.70 = 258,743.80 : x - Step 2: Convert to fraction form
271,865.80/407,798.70 = 258,743.80/x - Step 3: Cross multiply
271,865.80x = 407,798.70 × 258,743.80 - Step 4: Simplify right side
271,865.80x = 105,515,385,273.06 - Step 5: Solve for x
x = 105,515,385,273.06/271,865.80 - Step 6: Final answer
x = 388,115.70
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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.