Finding the Fourth Proportional to 370,988.62, 511,964.38 and 209,840.20
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Solution
The fourth proportional to 370,988.62, 511,964.38 and 209,840.20 is: 289,579.52
Step by Step Solution
- Step 1: Write the proportion equation
370,988.62 : 511,964.38 = 209,840.20 : x - Step 2: Convert to fraction form
370,988.62/511,964.38 = 209,840.20/x - Step 3: Cross multiply
370,988.62x = 511,964.38 × 209,840.20 - Step 4: Simplify right side
370,988.62x = 107,430,707,892.08 - Step 5: Solve for x
x = 107,430,707,892.08/370,988.62 - Step 6: Final answer
x = 289,579.52
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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.