Finding the Fourth Proportional to 217,787.90, 326,670.21 and 68,011.05
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Solution
The fourth proportional to 217,787.90, 326,670.21 and 68,011.05 is: 102,012.94
Step by Step Solution
- Step 1: Write the proportion equation
217,787.90 : 326,670.21 = 68,011.05 : x - Step 2: Convert to fraction form
217,787.90/326,670.21 = 68,011.05/x - Step 3: Cross multiply
217,787.90x = 326,670.21 × 68,011.05 - Step 4: Simplify right side
217,787.90x = 22,217,183,985.82 - Step 5: Solve for x
x = 22,217,183,985.82/217,787.90 - Step 6: Final answer
x = 102,012.94
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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.