Finding the Fourth Proportional to 285,213.34, 427,787.61 and 74,867.68
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Solution
The fourth proportional to 285,213.34, 427,787.61 and 74,867.68 is: 112,293.02
Step by Step Solution
- Step 1: Write the proportion equation
285,213.34 : 427,787.61 = 74,867.68 : x - Step 2: Convert to fraction form
285,213.34/427,787.61 = 74,867.68/x - Step 3: Cross multiply
285,213.34x = 427,787.61 × 74,867.68 - Step 4: Simplify right side
285,213.34x = 32,027,465,893.44 - Step 5: Solve for x
x = 32,027,465,893.44/285,213.34 - Step 6: Final answer
x = 112,293.02
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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.