Finding the Fourth Proportional to 386,771.36, 533,717.75 and 214,675.79
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Solution
The fourth proportional to 386,771.36, 533,717.75 and 214,675.79 is: 296,237.75
Step by Step Solution
- Step 1: Write the proportion equation
386,771.36 : 533,717.75 = 214,675.79 : x - Step 2: Convert to fraction form
386,771.36/533,717.75 = 214,675.79/x - Step 3: Cross multiply
386,771.36x = 533,717.75 × 214,675.79 - Step 4: Simplify right side
386,771.36x = 114,576,275,876.31 - Step 5: Solve for x
x = 114,576,275,876.31/386,771.36 - Step 6: Final answer
x = 296,237.75
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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.