Finding the Fourth Proportional to 383,129.14, 528,680.37 and 213,379.06
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Solution
The fourth proportional to 383,129.14, 528,680.37 and 213,379.06 is: 294,442.03
Step by Step Solution
- Step 1: Write the proportion equation
383,129.14 : 528,680.37 = 213,379.06 : x - Step 2: Convert to fraction form
383,129.14/528,680.37 = 213,379.06/x - Step 3: Cross multiply
383,129.14x = 528,680.37 × 213,379.06 - Step 4: Simplify right side
383,129.14x = 112,809,320,391.05 - Step 5: Solve for x
x = 112,809,320,391.05/383,129.14 - Step 6: Final answer
x = 294,442.03
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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.