Finding the Fourth Proportional to 317,441.72, 438,074.91 and 174,215.09
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Solution
The fourth proportional to 317,441.72, 438,074.91 and 174,215.09 is: 240,419.75
Step by Step Solution
- Step 1: Write the proportion equation
317,441.72 : 438,074.91 = 174,215.09 : x - Step 2: Convert to fraction form
317,441.72/438,074.91 = 174,215.09/x - Step 3: Cross multiply
317,441.72x = 438,074.91 × 174,215.09 - Step 4: Simplify right side
317,441.72x = 76,319,257,682.02 - Step 5: Solve for x
x = 76,319,257,682.02/317,441.72 - Step 6: Final answer
x = 240,419.75
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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.