Finding the Fourth Proportional to 276,436.91, 381,495.20 and 155,586.02
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Solution
The fourth proportional to 276,436.91, 381,495.20 and 155,586.02 is: 214,715.61
Step by Step Solution
- Step 1: Write the proportion equation
276,436.91 : 381,495.20 = 155,586.02 : x - Step 2: Convert to fraction form
276,436.91/381,495.20 = 155,586.02/x - Step 3: Cross multiply
276,436.91x = 381,495.20 × 155,586.02 - Step 4: Simplify right side
276,436.91x = 59,355,319,817.10 - Step 5: Solve for x
x = 59,355,319,817.10/276,436.91 - Step 6: Final answer
x = 214,715.61
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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.