Finding the Fourth Proportional to 274,257.97, 378,511.05 and 153,405.97
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Solution
The fourth proportional to 274,257.97, 378,511.05 and 153,405.97 is: 211,719.84
Step by Step Solution
- Step 1: Write the proportion equation
274,257.97 : 378,511.05 = 153,405.97 : x - Step 2: Convert to fraction form
274,257.97/378,511.05 = 153,405.97/x - Step 3: Cross multiply
274,257.97x = 378,511.05 × 153,405.97 - Step 4: Simplify right side
274,257.97x = 58,065,854,780.97 - Step 5: Solve for x
x = 58,065,854,780.97/274,257.97 - Step 6: Final answer
x = 211,719.84
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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.