Finding the Fourth Proportional to 217,935.74, 327,395.70 and 129,247.41
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Solution
The fourth proportional to 217,935.74, 327,395.70 and 129,247.41 is: 194,162.95
Step by Step Solution
- Step 1: Write the proportion equation
217,935.74 : 327,395.70 = 129,247.41 : x - Step 2: Convert to fraction form
217,935.74/327,395.70 = 129,247.41/x - Step 3: Cross multiply
217,935.74x = 327,395.70 × 129,247.41 - Step 4: Simplify right side
217,935.74x = 42,315,046,270.14 - Step 5: Solve for x
x = 42,315,046,270.14/217,935.74 - Step 6: Final answer
x = 194,162.95
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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.