Finding the Fourth Proportional to 287,658.16, 430,917.66 and 135,647.08
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Solution
The fourth proportional to 287,658.16, 430,917.66 and 135,647.08 is: 203,202.03
Step by Step Solution
- Step 1: Write the proportion equation
287,658.16 : 430,917.66 = 135,647.08 : x - Step 2: Convert to fraction form
287,658.16/430,917.66 = 135,647.08/x - Step 3: Cross multiply
287,658.16x = 430,917.66 × 135,647.08 - Step 4: Simplify right side
287,658.16x = 58,452,722,299.43 - Step 5: Solve for x
x = 58,452,722,299.43/287,658.16 - Step 6: Final answer
x = 203,202.03
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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.