Finding the Fourth Proportional to 385,988.91, 578,785.92 and 161,288.02
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Solution
The fourth proportional to 385,988.91, 578,785.92 and 161,288.02 is: 241,849.53
Step by Step Solution
- Step 1: Write the proportion equation
385,988.91 : 578,785.92 = 161,288.02 : x - Step 2: Convert to fraction form
385,988.91/578,785.92 = 161,288.02/x - Step 3: Cross multiply
385,988.91x = 578,785.92 × 161,288.02 - Step 4: Simplify right side
385,988.91x = 93,351,235,040.68 - Step 5: Solve for x
x = 93,351,235,040.68/385,988.91 - Step 6: Final answer
x = 241,849.53
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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.