Finding the Fourth Proportional to 343,874.90, 515,812.35 and 217,903.70
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Solution
The fourth proportional to 343,874.90, 515,812.35 and 217,903.70 is: 326,855.55
Step by Step Solution
- Step 1: Write the proportion equation
343,874.90 : 515,812.35 = 217,903.70 : x - Step 2: Convert to fraction form
343,874.90/515,812.35 = 217,903.70/x - Step 3: Cross multiply
343,874.90x = 515,812.35 × 217,903.70 - Step 4: Simplify right side
343,874.90x = 112,397,419,570.70 - Step 5: Solve for x
x = 112,397,419,570.70/343,874.90 - Step 6: Final answer
x = 326,855.55
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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.