Finding the Fourth Proportional to 354,658.23, 489,425.85 and 201,696.48
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Solution
The fourth proportional to 354,658.23, 489,425.85 and 201,696.48 is: 278,339.72
Step by Step Solution
- Step 1: Write the proportion equation
354,658.23 : 489,425.85 = 201,696.48 : x - Step 2: Convert to fraction form
354,658.23/489,425.85 = 201,696.48/x - Step 3: Cross multiply
354,658.23x = 489,425.85 × 201,696.48 - Step 4: Simplify right side
354,658.23x = 98,715,471,166.01 - Step 5: Solve for x
x = 98,715,471,166.01/354,658.23 - Step 6: Final answer
x = 278,339.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.