Finding the Fourth Proportional to 225,291.42, 310,881.09 and 134,629.38
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Solution
The fourth proportional to 225,291.42, 310,881.09 and 134,629.38 is: 185,775.95
Step by Step Solution
- Step 1: Write the proportion equation
225,291.42 : 310,881.09 = 134,629.38 : x - Step 2: Convert to fraction form
225,291.42/310,881.09 = 134,629.38/x - Step 3: Cross multiply
225,291.42x = 310,881.09 × 134,629.38 - Step 4: Simplify right side
225,291.42x = 41,853,728,400.42 - Step 5: Solve for x
x = 41,853,728,400.42/225,291.42 - Step 6: Final answer
x = 185,775.95
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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.