Finding the Fourth Proportional to 438,458.67, 657,706.50 and 138,932.62
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Solution
The fourth proportional to 438,458.67, 657,706.50 and 138,932.62 is: 208,404.79
Step by Step Solution
- Step 1: Write the proportion equation
438,458.67 : 657,706.50 = 138,932.62 : x - Step 2: Convert to fraction form
438,458.67/657,706.50 = 138,932.62/x - Step 3: Cross multiply
438,458.67x = 657,706.50 × 138,932.62 - Step 4: Simplify right side
438,458.67x = 91,376,885,591.76 - Step 5: Solve for x
x = 91,376,885,591.76/438,458.67 - Step 6: Final answer
x = 208,404.79
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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.