Finding the Fourth Proportional to 211,908.54, 317,827.86 and 69,755.66
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Solution
The fourth proportional to 211,908.54, 317,827.86 and 69,755.66 is: 104,621.99
Step by Step Solution
- Step 1: Write the proportion equation
211,908.54 : 317,827.86 = 69,755.66 : x - Step 2: Convert to fraction form
211,908.54/317,827.86 = 69,755.66/x - Step 3: Cross multiply
211,908.54x = 317,827.86 × 69,755.66 - Step 4: Simplify right side
211,908.54x = 22,170,292,140.69 - Step 5: Solve for x
x = 22,170,292,140.69/211,908.54 - Step 6: Final answer
x = 104,621.99
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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.