Finding the Fourth Proportional to 386,582.75, 579,641.07 and 173,312.09
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Solution
The fourth proportional to 386,582.75, 579,641.07 and 173,312.09 is: 259,863.65
Step by Step Solution
- Step 1: Write the proportion equation
386,582.75 : 579,641.07 = 173,312.09 : x - Step 2: Convert to fraction form
386,582.75/579,641.07 = 173,312.09/x - Step 3: Cross multiply
386,582.75x = 579,641.07 × 173,312.09 - Step 4: Simplify right side
386,582.75x = 100,458,805,291.54 - Step 5: Solve for x
x = 100,458,805,291.54/386,582.75 - Step 6: Final answer
x = 259,863.65
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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.