Finding the Fourth Proportional to 328,141.81, 492,240.48 and 91,484.70
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Solution
The fourth proportional to 328,141.81, 492,240.48 and 91,484.70 is: 137,234.79
Step by Step Solution
- Step 1: Write the proportion equation
328,141.81 : 492,240.48 = 91,484.70 : x - Step 2: Convert to fraction form
328,141.81/492,240.48 = 91,484.70/x - Step 3: Cross multiply
328,141.81x = 492,240.48 × 91,484.70 - Step 4: Simplify right side
328,141.81x = 45,032,472,640.66 - Step 5: Solve for x
x = 45,032,472,640.66/328,141.81 - Step 6: Final answer
x = 137,234.79
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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.