Finding the Fourth Proportional to 317,455.61, 476,177.22 and 77,571.09
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Solution
The fourth proportional to 317,455.61, 476,177.22 and 77,571.09 is: 116,355.12
Step by Step Solution
- Step 1: Write the proportion equation
317,455.61 : 476,177.22 = 77,571.09 : x - Step 2: Convert to fraction form
317,455.61/476,177.22 = 77,571.09/x - Step 3: Cross multiply
317,455.61x = 476,177.22 × 77,571.09 - Step 4: Simplify right side
317,455.61x = 36,937,585,988.57 - Step 5: Solve for x
x = 36,937,585,988.57/317,455.61 - Step 6: Final answer
x = 116,355.12
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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.