Finding the Fourth Proportional to 208,787.84, 288,006.72 and 133,251.20
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Solution
The fourth proportional to 208,787.84, 288,006.72 and 133,251.20 is: 183,809.75
Step by Step Solution
- Step 1: Write the proportion equation
208,787.84 : 288,006.72 = 133,251.20 : x - Step 2: Convert to fraction form
208,787.84/288,006.72 = 133,251.20/x - Step 3: Cross multiply
208,787.84x = 288,006.72 × 133,251.20 - Step 4: Simplify right side
208,787.84x = 38,377,241,048.06 - Step 5: Solve for x
x = 38,377,241,048.06/208,787.84 - Step 6: Final answer
x = 183,809.75
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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.