Finding the Fourth Proportional to 408,205.98, 612,587.61 and 141,963.84
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Solution
The fourth proportional to 408,205.98, 612,587.61 and 141,963.84 is: 213,042.66
Step by Step Solution
- Step 1: Write the proportion equation
408,205.98 : 612,587.61 = 141,963.84 : x - Step 2: Convert to fraction form
408,205.98/612,587.61 = 141,963.84/x - Step 3: Cross multiply
408,205.98x = 612,587.61 × 141,963.84 - Step 4: Simplify right side
408,205.98x = 86,965,289,452.02 - Step 5: Solve for x
x = 86,965,289,452.02/408,205.98 - Step 6: Final answer
x = 213,042.66
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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.