Finding the Fourth Proportional to 221,377.28, 305,497.12 and 125,881.92
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Solution
The fourth proportional to 221,377.28, 305,497.12 and 125,881.92 is: 173,715.04
Step by Step Solution
- Step 1: Write the proportion equation
221,377.28 : 305,497.12 = 125,881.92 : x - Step 2: Convert to fraction form
221,377.28/305,497.12 = 125,881.92/x - Step 3: Cross multiply
221,377.28x = 305,497.12 × 125,881.92 - Step 4: Simplify right side
221,377.28x = 38,456,564,020.07 - Step 5: Solve for x
x = 38,456,564,020.07/221,377.28 - Step 6: Final answer
x = 173,715.04
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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.