Finding the Fourth Proportional to 430,524.56, 645,787.38 and 205,832.18
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Solution
The fourth proportional to 430,524.56, 645,787.38 and 205,832.18 is: 308,748.53
Step by Step Solution
- Step 1: Write the proportion equation
430,524.56 : 645,787.38 = 205,832.18 : x - Step 2: Convert to fraction form
430,524.56/645,787.38 = 205,832.18/x - Step 3: Cross multiply
430,524.56x = 645,787.38 × 205,832.18 - Step 4: Simplify right side
430,524.56x = 132,923,824,241.89 - Step 5: Solve for x
x = 132,923,824,241.89/430,524.56 - Step 6: Final answer
x = 308,748.53
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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.