Finding the Fourth Proportional to 285,554.11, 428,237.73 and 133,704.18
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Solution
The fourth proportional to 285,554.11, 428,237.73 and 133,704.18 is: 200,512.52
Step by Step Solution
- Step 1: Write the proportion equation
285,554.11 : 428,237.73 = 133,704.18 : x - Step 2: Convert to fraction form
285,554.11/428,237.73 = 133,704.18/x - Step 3: Cross multiply
285,554.11x = 428,237.73 × 133,704.18 - Step 4: Simplify right side
285,554.11x = 57,257,174,534.71 - Step 5: Solve for x
x = 57,257,174,534.71/285,554.11 - Step 6: Final answer
x = 200,512.52
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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.