Finding the Fourth Proportional to 386,717.96, 533,662.74 and 214,625.94
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Solution
The fourth proportional to 386,717.96, 533,662.74 and 214,625.94 is: 296,179.33
Step by Step Solution
- Step 1: Write the proportion equation
386,717.96 : 533,662.74 = 214,625.94 : x - Step 2: Convert to fraction form
386,717.96/533,662.74 = 214,625.94/x - Step 3: Cross multiply
386,717.96x = 533,662.74 × 214,625.94 - Step 4: Simplify right side
386,717.96x = 114,537,867,215.48 - Step 5: Solve for x
x = 114,537,867,215.48/386,717.96 - Step 6: Final answer
x = 296,179.33
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1.5x scale
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.