Finding the Fourth Proportional to 370,682.71, 511,536.59 and 209,532.09
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Solution
The fourth proportional to 370,682.71, 511,536.59 and 209,532.09 is: 289,151.15
Step by Step Solution
- Step 1: Write the proportion equation
370,682.71 : 511,536.59 = 209,532.09 : x - Step 2: Convert to fraction form
370,682.71/511,536.59 = 209,532.09/x - Step 3: Cross multiply
370,682.71x = 511,536.59 × 209,532.09 - Step 4: Simplify right side
370,682.71x = 107,183,330,814.17 - Step 5: Solve for x
x = 107,183,330,814.17/370,682.71 - Step 6: Final answer
x = 289,151.15
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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.