Finding the Fourth Proportional to 248,640.09, 343,123.36 and 135,462.84
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Solution
The fourth proportional to 248,640.09, 343,123.36 and 135,462.84 is: 186,938.73
Step by Step Solution
- Step 1: Write the proportion equation
248,640.09 : 343,123.36 = 135,462.84 : x - Step 2: Convert to fraction form
248,640.09/343,123.36 = 135,462.84/x - Step 3: Cross multiply
248,640.09x = 343,123.36 × 135,462.84 - Step 4: Simplify right side
248,640.09x = 46,480,462,423.01 - Step 5: Solve for x
x = 46,480,462,423.01/248,640.09 - Step 6: Final answer
x = 186,938.73
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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.