Finding the Fourth Proportional to 317,757.36, 438,513.12 and 174,530.88
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Solution
The fourth proportional to 317,757.36, 438,513.12 and 174,530.88 is: 240,856.99
Step by Step Solution
- Step 1: Write the proportion equation
317,757.36 : 438,513.12 = 174,530.88 : x - Step 2: Convert to fraction form
317,757.36/438,513.12 = 174,530.88/x - Step 3: Cross multiply
317,757.36x = 438,513.12 × 174,530.88 - Step 4: Simplify right side
317,757.36x = 76,534,080,725.15 - Step 5: Solve for x
x = 76,534,080,725.15/317,757.36 - Step 6: Final answer
x = 240,856.99
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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.