Finding the Fourth Proportional to 217,731.53, 326,617.83 and 84,621.98
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Solution
The fourth proportional to 217,731.53, 326,617.83 and 84,621.98 is: 126,940.95
Step by Step Solution
- Step 1: Write the proportion equation
217,731.53 : 326,617.83 = 84,621.98 : x - Step 2: Convert to fraction form
217,731.53/326,617.83 = 84,621.98/x - Step 3: Cross multiply
217,731.53x = 326,617.83 × 84,621.98 - Step 4: Simplify right side
217,731.53x = 27,639,045,844.81 - Step 5: Solve for x
x = 27,639,045,844.81/217,731.53 - Step 6: Final answer
x = 126,940.95
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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.