Finding the Fourth Proportional to 326,585.16, 489,908.72 and 126,920.97
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Solution
The fourth proportional to 326,585.16, 489,908.72 and 126,920.97 is: 190,393.50
Step by Step Solution
- Step 1: Write the proportion equation
326,585.16 : 489,908.72 = 126,920.97 : x - Step 2: Convert to fraction form
326,585.16/489,908.72 = 126,920.97/x - Step 3: Cross multiply
326,585.16x = 489,908.72 × 126,920.97 - Step 4: Simplify right side
326,585.16x = 62,179,690,271.16 - Step 5: Solve for x
x = 62,179,690,271.16/326,585.16 - Step 6: Final answer
x = 190,393.50
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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.