Finding the Fourth Proportional to 276,687.24, 381,835.44 and 155,833.08
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Solution
The fourth proportional to 276,687.24, 381,835.44 and 155,833.08 is: 215,053.62
Step by Step Solution
- Step 1: Write the proportion equation
276,687.24 : 381,835.44 = 155,833.08 : x - Step 2: Convert to fraction form
276,687.24/381,835.44 = 155,833.08/x - Step 3: Cross multiply
276,687.24x = 381,835.44 × 155,833.08 - Step 4: Simplify right side
276,687.24x = 59,502,592,668.36 - Step 5: Solve for x
x = 59,502,592,668.36/276,687.24 - Step 6: Final answer
x = 215,053.62
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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.