Finding the Fourth Proportional to 206,645.18, 309,671.76 and 117,715.08
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Solution
The fourth proportional to 206,645.18, 309,671.76 and 117,715.08 is: 176,404.00
Step by Step Solution
- Step 1: Write the proportion equation
206,645.18 : 309,671.76 = 117,715.08 : x - Step 2: Convert to fraction form
206,645.18/309,671.76 = 117,715.08/x - Step 3: Cross multiply
206,645.18x = 309,671.76 × 117,715.08 - Step 4: Simplify right side
206,645.18x = 36,453,036,002.14 - Step 5: Solve for x
x = 36,453,036,002.14/206,645.18 - Step 6: Final answer
x = 176,404.00
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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.