Finding the Fourth Proportional to 276,366.44, 381,416.64 and 155,537.12
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Solution
The fourth proportional to 276,366.44, 381,416.64 and 155,537.12 is: 214,658.65
Step by Step Solution
- Step 1: Write the proportion equation
276,366.44 : 381,416.64 = 155,537.12 : x - Step 2: Convert to fraction form
276,366.44/381,416.64 = 155,537.12/x - Step 3: Cross multiply
276,366.44x = 381,416.64 × 155,537.12 - Step 4: Simplify right side
276,366.44x = 59,324,445,705.68 - Step 5: Solve for x
x = 59,324,445,705.68/276,366.44 - Step 6: Final answer
x = 214,658.65
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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.