Finding the Fourth Proportional to 212,403.24, 318,605.03 and 145,640.93
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Solution
The fourth proportional to 212,403.24, 318,605.03 and 145,640.93 is: 218,461.50
Step by Step Solution
- Step 1: Write the proportion equation
212,403.24 : 318,605.03 = 145,640.93 : x - Step 2: Convert to fraction form
212,403.24/318,605.03 = 145,640.93/x - Step 3: Cross multiply
212,403.24x = 318,605.03 × 145,640.93 - Step 4: Simplify right side
212,403.24x = 46,401,930,550.65 - Step 5: Solve for x
x = 46,401,930,550.65/212,403.24 - Step 6: Final answer
x = 218,461.50
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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.