Finding the Fourth Proportional to 415,720.20, 622,658.70 and 166,273.80
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Solution
The fourth proportional to 415,720.20, 622,658.70 and 166,273.80 is: 249,042.09
Step by Step Solution
- Step 1: Write the proportion equation
415,720.20 : 622,658.70 = 166,273.80 : x - Step 2: Convert to fraction form
415,720.20/622,658.70 = 166,273.80/x - Step 3: Cross multiply
415,720.20x = 622,658.70 × 166,273.80 - Step 4: Simplify right side
415,720.20x = 103,531,828,152.06 - Step 5: Solve for x
x = 103,531,828,152.06/415,720.20 - Step 6: Final answer
x = 249,042.09
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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.