Finding the Fourth Proportional to 211,857.08, 317,490.36 and 159,205.05
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Solution
The fourth proportional to 211,857.08, 317,490.36 and 159,205.05 is: 238,585.70
Step by Step Solution
- Step 1: Write the proportion equation
211,857.08 : 317,490.36 = 159,205.05 : x - Step 2: Convert to fraction form
211,857.08/317,490.36 = 159,205.05/x - Step 3: Cross multiply
211,857.08x = 317,490.36 × 159,205.05 - Step 4: Simplify right side
211,857.08x = 50,546,068,638.32 - Step 5: Solve for x
x = 50,546,068,638.32/211,857.08 - Step 6: Final answer
x = 238,585.70
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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.