Finding the Fourth Proportional to 326,738.91, 489,918.06 and 126,825.75
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Solution
The fourth proportional to 326,738.91, 489,918.06 and 126,825.75 is: 190,164.76
Step by Step Solution
- Step 1: Write the proportion equation
326,738.91 : 489,918.06 = 126,825.75 : x - Step 2: Convert to fraction form
326,738.91/489,918.06 = 126,825.75/x - Step 3: Cross multiply
326,738.91x = 489,918.06 × 126,825.75 - Step 4: Simplify right side
326,738.91x = 62,134,225,398.05 - Step 5: Solve for x
x = 62,134,225,398.05/326,738.91 - Step 6: Final answer
x = 190,164.76
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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.