Finding the Fourth Proportional to 317,704.34, 476,450.71 and 128,115.74
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Solution
The fourth proportional to 317,704.34, 476,450.71 and 128,115.74 is: 192,130.95
Step by Step Solution
- Step 1: Write the proportion equation
317,704.34 : 476,450.71 = 128,115.74 : x - Step 2: Convert to fraction form
317,704.34/476,450.71 = 128,115.74/x - Step 3: Cross multiply
317,704.34x = 476,450.71 × 128,115.74 - Step 4: Simplify right side
317,704.34x = 61,040,836,156.01 - Step 5: Solve for x
x = 61,040,836,156.01/317,704.34 - Step 6: Final answer
x = 192,130.95
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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.