Finding the Fourth Proportional to 258,753.36, 387,998.76 and 118,391.68
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Solution
The fourth proportional to 258,753.36, 387,998.76 and 118,391.68 is: 177,527.45
Step by Step Solution
- Step 1: Write the proportion equation
258,753.36 : 387,998.76 = 118,391.68 : x - Step 2: Convert to fraction form
258,753.36/387,998.76 = 118,391.68/x - Step 3: Cross multiply
258,753.36x = 387,998.76 × 118,391.68 - Step 4: Simplify right side
258,753.36x = 45,935,825,034.32 - Step 5: Solve for x
x = 45,935,825,034.32/258,753.36 - Step 6: Final answer
x = 177,527.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.