Finding the Fourth Proportional to 306,721.28, 423,390.84 and 179,437.88
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Solution
The fourth proportional to 306,721.28, 423,390.84 and 179,437.88 is: 247,691.83
Step by Step Solution
- Step 1: Write the proportion equation
306,721.28 : 423,390.84 = 179,437.88 : x - Step 2: Convert to fraction form
306,721.28/423,390.84 = 179,437.88/x - Step 3: Cross multiply
306,721.28x = 423,390.84 × 179,437.88 - Step 4: Simplify right side
306,721.28x = 75,972,354,741.02 - Step 5: Solve for x
x = 75,972,354,741.02/306,721.28 - Step 6: Final answer
x = 247,691.83
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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.