Finding the Fourth Proportional to 176,909.84, 244,133.15 and 100,428.26
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Solution
The fourth proportional to 176,909.84, 244,133.15 and 100,428.26 is: 138,589.63
Step by Step Solution
- Step 1: Write the proportion equation
176,909.84 : 244,133.15 = 100,428.26 : x - Step 2: Convert to fraction form
176,909.84/244,133.15 = 100,428.26/x - Step 3: Cross multiply
176,909.84x = 244,133.15 × 100,428.26 - Step 4: Simplify right side
176,909.84x = 24,517,868,324.22 - Step 5: Solve for x
x = 24,517,868,324.22/176,909.84 - Step 6: Final answer
x = 138,589.63
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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.