Finding the Fourth Proportional to 239,887.68, 331,046.40 and 132,455.68
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Solution
The fourth proportional to 239,887.68, 331,046.40 and 132,455.68 is: 182,789.61
Step by Step Solution
- Step 1: Write the proportion equation
239,887.68 : 331,046.40 = 132,455.68 : x - Step 2: Convert to fraction form
239,887.68/331,046.40 = 132,455.68/x - Step 3: Cross multiply
239,887.68x = 331,046.40 × 132,455.68 - Step 4: Simplify right side
239,887.68x = 43,848,976,023.55 - Step 5: Solve for x
x = 43,848,976,023.55/239,887.68 - Step 6: Final answer
x = 182,789.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.