Finding the Fourth Proportional to 207,489.83, 286,340.81 and 115,615.31
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Solution
The fourth proportional to 207,489.83, 286,340.81 and 115,615.31 is: 159,551.82
Step by Step Solution
- Step 1: Write the proportion equation
207,489.83 : 286,340.81 = 115,615.31 : x - Step 2: Convert to fraction form
207,489.83/286,340.81 = 115,615.31/x - Step 3: Cross multiply
207,489.83x = 286,340.81 × 115,615.31 - Step 4: Simplify right side
207,489.83x = 33,105,379,504.02 - Step 5: Solve for x
x = 33,105,379,504.02/207,489.83 - Step 6: Final answer
x = 159,551.82
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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.