Finding the Fourth Proportional to 330,787.68, 496,181.64 and 81,469.68
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Solution
The fourth proportional to 330,787.68, 496,181.64 and 81,469.68 is: 122,204.55
Step by Step Solution
- Step 1: Write the proportion equation
330,787.68 : 496,181.64 = 81,469.68 : x - Step 2: Convert to fraction form
330,787.68/496,181.64 = 81,469.68/x - Step 3: Cross multiply
330,787.68x = 496,181.64 × 81,469.68 - Step 4: Simplify right side
330,787.68x = 40,423,759,432.68 - Step 5: Solve for x
x = 40,423,759,432.68/330,787.68 - Step 6: Final answer
x = 122,204.55
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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.