Finding the Fourth Proportional to 370,989.38, 511,965.36 and 209,840.96
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Solution
The fourth proportional to 370,989.38, 511,965.36 and 209,840.96 is: 289,580.53
Step by Step Solution
- Step 1: Write the proportion equation
370,989.38 : 511,965.36 = 209,840.96 : x - Step 2: Convert to fraction form
370,989.38/511,965.36 = 209,840.96/x - Step 3: Cross multiply
370,989.38x = 511,965.36 × 209,840.96 - Step 4: Simplify right side
370,989.38x = 107,431,300,069.32 - Step 5: Solve for x
x = 107,431,300,069.32/370,989.38 - Step 6: Final answer
x = 289,580.53
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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.