Finding the Fourth Proportional to 354,953.48, 489,838.19 and 193,809.65
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Solution
The fourth proportional to 354,953.48, 489,838.19 and 193,809.65 is: 267,458.61
Step by Step Solution
- Step 1: Write the proportion equation
354,953.48 : 489,838.19 = 193,809.65 : x - Step 2: Convert to fraction form
354,953.48/489,838.19 = 193,809.65/x - Step 3: Cross multiply
354,953.48x = 489,838.19 × 193,809.65 - Step 4: Simplify right side
354,953.48x = 94,935,364,742.29 - Step 5: Solve for x
x = 94,935,364,742.29/354,953.48 - Step 6: Final answer
x = 267,458.61
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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.