Finding the Fourth Proportional to 286,110.96, 394,828.20 and 158,791.92
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Solution
The fourth proportional to 286,110.96, 394,828.20 and 158,791.92 is: 219,130.12
Step by Step Solution
- Step 1: Write the proportion equation
286,110.96 : 394,828.20 = 158,791.92 : x - Step 2: Convert to fraction form
286,110.96/394,828.20 = 158,791.92/x - Step 3: Cross multiply
286,110.96x = 394,828.20 × 158,791.92 - Step 4: Simplify right side
286,110.96x = 62,695,527,948.14 - Step 5: Solve for x
x = 62,695,527,948.14/286,110.96 - Step 6: Final answer
x = 219,130.12
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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.