Finding the Fourth Proportional to 146,207.80, 219,311.70 and 57,431.80
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Solution
The fourth proportional to 146,207.80, 219,311.70 and 57,431.80 is: 86,147.70
Step by Step Solution
- Step 1: Write the proportion equation
146,207.80 : 219,311.70 = 57,431.80 : x - Step 2: Convert to fraction form
146,207.80/219,311.70 = 57,431.80/x - Step 3: Cross multiply
146,207.80x = 219,311.70 × 57,431.80 - Step 4: Simplify right side
146,207.80x = 12,595,465,692.06 - Step 5: Solve for x
x = 12,595,465,692.06/146,207.80 - Step 6: Final answer
x = 86,147.70
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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.