Finding the Fourth Proportional to 156,857.80, 235,286.70 and 146,489.80
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Solution
The fourth proportional to 156,857.80, 235,286.70 and 146,489.80 is: 219,734.70
Step by Step Solution
- Step 1: Write the proportion equation
156,857.80 : 235,286.70 = 146,489.80 : x - Step 2: Convert to fraction form
156,857.80/235,286.70 = 146,489.80/x - Step 3: Cross multiply
156,857.80x = 235,286.70 × 146,489.80 - Step 4: Simplify right side
156,857.80x = 34,467,101,625.66 - Step 5: Solve for x
x = 34,467,101,625.66/156,857.80 - Step 6: Final answer
x = 219,734.70
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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.