Finding the Fourth Proportional to 392,678.56, 588,472.87 and 178,924.09
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Solution
The fourth proportional to 392,678.56, 588,472.87 and 178,924.09 is: 268,137.81
Step by Step Solution
- Step 1: Write the proportion equation
392,678.56 : 588,472.87 = 178,924.09 : x - Step 2: Convert to fraction form
392,678.56/588,472.87 = 178,924.09/x - Step 3: Cross multiply
392,678.56x = 588,472.87 × 178,924.09 - Step 4: Simplify right side
392,678.56x = 105,291,969,812.07 - Step 5: Solve for x
x = 105,291,969,812.07/392,678.56 - Step 6: Final answer
x = 268,137.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.