Finding the Fourth Proportional to 273,128.81, 376,921.08 and 158,434.02
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Solution
The fourth proportional to 273,128.81, 376,921.08 and 158,434.02 is: 218,640.88
Step by Step Solution
- Step 1: Write the proportion equation
273,128.81 : 376,921.08 = 158,434.02 : x - Step 2: Convert to fraction form
273,128.81/376,921.08 = 158,434.02/x - Step 3: Cross multiply
273,128.81x = 376,921.08 × 158,434.02 - Step 4: Simplify right side
273,128.81x = 59,717,121,927.14 - Step 5: Solve for x
x = 59,717,121,927.14/273,128.81 - Step 6: Final answer
x = 218,640.88
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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.