Finding the Fourth Proportional to 276,631.07, 381,787.25 and 155,795.99
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Solution
The fourth proportional to 276,631.07, 381,787.25 and 155,795.99 is: 215,018.95
Step by Step Solution
- Step 1: Write the proportion equation
276,631.07 : 381,787.25 = 155,795.99 : x - Step 2: Convert to fraction form
276,631.07/381,787.25 = 155,795.99/x - Step 3: Cross multiply
276,631.07x = 381,787.25 × 155,795.99 - Step 4: Simplify right side
276,631.07x = 59,480,919,895.21 - Step 5: Solve for x
x = 59,480,919,895.21/276,631.07 - Step 6: Final answer
x = 215,018.95
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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.