Finding the Fourth Proportional to 351,829.48, 528,450.12 and 209,951.50
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Solution
The fourth proportional to 351,829.48, 528,450.12 and 209,951.50 is: 315,348.49
Step by Step Solution
- Step 1: Write the proportion equation
351,829.48 : 528,450.12 = 209,951.50 : x - Step 2: Convert to fraction form
351,829.48/528,450.12 = 209,951.50/x - Step 3: Cross multiply
351,829.48x = 528,450.12 × 209,951.50 - Step 4: Simplify right side
351,829.48x = 110,948,895,369.18 - Step 5: Solve for x
x = 110,948,895,369.18/351,829.48 - Step 6: Final answer
x = 315,348.49
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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.