Finding the Fourth Proportional to 386,649.24, 579,740.91 and 173,378.55
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Solution
The fourth proportional to 386,649.24, 579,740.91 and 173,378.55 is: 259,963.37
Step by Step Solution
- Step 1: Write the proportion equation
386,649.24 : 579,740.91 = 173,378.55 : x - Step 2: Convert to fraction form
386,649.24/579,740.91 = 173,378.55/x - Step 3: Cross multiply
386,649.24x = 579,740.91 × 173,378.55 - Step 4: Simplify right side
386,649.24x = 100,514,638,351.48 - Step 5: Solve for x
x = 100,514,638,351.48/386,649.24 - Step 6: Final answer
x = 259,963.37
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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.