Finding the Fourth Proportional to 372,453.86, 513,950.76 and 209,072.94
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Solution
The fourth proportional to 372,453.86, 513,950.76 and 209,072.94 is: 288,500.70
Step by Step Solution
- Step 1: Write the proportion equation
372,453.86 : 513,950.76 = 209,072.94 : x - Step 2: Convert to fraction form
372,453.86/513,950.76 = 209,072.94/x - Step 3: Cross multiply
372,453.86x = 513,950.76 × 209,072.94 - Step 4: Simplify right side
372,453.86x = 107,453,196,408.43 - Step 5: Solve for x
x = 107,453,196,408.43/372,453.86 - Step 6: Final answer
x = 288,500.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.