Finding the Fourth Proportional to 370,986.50, 511,961.42 and 209,838.08
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Solution
The fourth proportional to 370,986.50, 511,961.42 and 209,838.08 is: 289,576.58
Step by Step Solution
- Step 1: Write the proportion equation
370,986.50 : 511,961.42 = 209,838.08 : x - Step 2: Convert to fraction form
370,986.50/511,961.42 = 209,838.08/x - Step 3: Cross multiply
370,986.50x = 511,961.42 × 209,838.08 - Step 4: Simplify right side
370,986.50x = 107,429,001,406.87 - Step 5: Solve for x
x = 107,429,001,406.87/370,986.50 - Step 6: Final answer
x = 289,576.58
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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.