Finding the Fourth Proportional to 378,486.97, 567,718.09 and 153,780.95
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Solution
The fourth proportional to 378,486.97, 567,718.09 and 153,780.95 is: 230,666.40
Step by Step Solution
- Step 1: Write the proportion equation
378,486.97 : 567,718.09 = 153,780.95 : x - Step 2: Convert to fraction form
378,486.97/567,718.09 = 153,780.95/x - Step 3: Cross multiply
378,486.97x = 567,718.09 × 153,780.95 - Step 4: Simplify right side
378,486.97x = 87,304,227,212.39 - Step 5: Solve for x
x = 87,304,227,212.39/378,486.97 - Step 6: Final answer
x = 230,666.40
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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.