Finding the Fourth Proportional to 276,502.14, 381,568.73 and 155,643.05
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Solution
The fourth proportional to 276,502.14, 381,568.73 and 155,643.05 is: 214,785.03
Step by Step Solution
- Step 1: Write the proportion equation
276,502.14 : 381,568.73 = 155,643.05 : x - Step 2: Convert to fraction form
276,502.14/381,568.73 = 155,643.05/x - Step 3: Cross multiply
276,502.14x = 381,568.73 × 155,643.05 - Step 4: Simplify right side
276,502.14x = 59,388,521,097.53 - Step 5: Solve for x
x = 59,388,521,097.53/276,502.14 - Step 6: Final answer
x = 214,785.03
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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.