Finding the Fourth Proportional to 370,680.71, 511,533.83 and 209,530.09
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Solution
The fourth proportional to 370,680.71, 511,533.83 and 209,530.09 is: 289,148.39
Step by Step Solution
- Step 1: Write the proportion equation
370,680.71 : 511,533.83 = 209,530.09 : x - Step 2: Convert to fraction form
370,680.71/511,533.83 = 209,530.09/x - Step 3: Cross multiply
370,680.71x = 511,533.83 × 209,530.09 - Step 4: Simplify right side
370,680.71x = 107,181,730,601.19 - Step 5: Solve for x
x = 107,181,730,601.19/370,680.71 - Step 6: Final answer
x = 289,148.39
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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.