Finding the Fourth Proportional to 285,527.84, 394,011.92 and 158,195.84
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Solution
The fourth proportional to 285,527.84, 394,011.92 and 158,195.84 is: 218,301.12
Step by Step Solution
- Step 1: Write the proportion equation
285,527.84 : 394,011.92 = 158,195.84 : x - Step 2: Convert to fraction form
285,527.84/394,011.92 = 158,195.84/x - Step 3: Cross multiply
285,527.84x = 394,011.92 × 158,195.84 - Step 4: Simplify right side
285,527.84x = 62,331,046,654.41 - Step 5: Solve for x
x = 62,331,046,654.41/285,527.84 - Step 6: Final answer
x = 218,301.12
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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.