Finding the Fourth Proportional to 209,332.23, 313,998.48 and 90,938.99
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Solution
The fourth proportional to 209,332.23, 313,998.48 and 90,938.99 is: 136,408.54
Step by Step Solution
- Step 1: Write the proportion equation
209,332.23 : 313,998.48 = 90,938.99 : x - Step 2: Convert to fraction form
209,332.23/313,998.48 = 90,938.99/x - Step 3: Cross multiply
209,332.23x = 313,998.48 × 90,938.99 - Step 4: Simplify right side
209,332.23x = 28,554,703,062.74 - Step 5: Solve for x
x = 28,554,703,062.74/209,332.23 - Step 6: Final answer
x = 136,408.54
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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.