Finding the Fourth Proportional to 209,083.06, 313,318.41 and 103,691.53
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Solution
The fourth proportional to 209,083.06, 313,318.41 and 103,691.53 is: 155,385.45
Step by Step Solution
- Step 1: Write the proportion equation
209,083.06 : 313,318.41 = 103,691.53 : x - Step 2: Convert to fraction form
209,083.06/313,318.41 = 103,691.53/x - Step 3: Cross multiply
209,083.06x = 313,318.41 × 103,691.53 - Step 4: Simplify right side
209,083.06x = 32,488,465,310.07 - Step 5: Solve for x
x = 32,488,465,310.07/209,083.06 - Step 6: Final answer
x = 155,385.45
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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.