Finding the Fourth Proportional to 317,811.62, 438,568.24 and 174,563.12
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Solution
The fourth proportional to 317,811.62, 438,568.24 and 174,563.12 is: 240,890.63
Step by Step Solution
- Step 1: Write the proportion equation
317,811.62 : 438,568.24 = 174,563.12 : x - Step 2: Convert to fraction form
317,811.62/438,568.24 = 174,563.12/x - Step 3: Cross multiply
317,811.62x = 438,568.24 × 174,563.12 - Step 4: Simplify right side
317,811.62x = 76,557,840,307.31 - Step 5: Solve for x
x = 76,557,840,307.31/317,811.62 - Step 6: Final answer
x = 240,890.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.