Finding the Fourth Proportional to 211,593.64, 317,389.02 and 53,820.68
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Solution
The fourth proportional to 211,593.64, 317,389.02 and 53,820.68 is: 80,730.65
Step by Step Solution
- Step 1: Write the proportion equation
211,593.64 : 317,389.02 = 53,820.68 : x - Step 2: Convert to fraction form
211,593.64/317,389.02 = 53,820.68/x - Step 3: Cross multiply
211,593.64x = 317,389.02 × 53,820.68 - Step 4: Simplify right side
211,593.64x = 17,082,092,880.93 - Step 5: Solve for x
x = 17,082,092,880.93/211,593.64 - Step 6: Final answer
x = 80,730.65
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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.