Finding the Fourth Proportional to 213,661.77, 294,944.03 and 133,129.09
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Solution
The fourth proportional to 213,661.77, 294,944.03 and 133,129.09 is: 183,774.71
Step by Step Solution
- Step 1: Write the proportion equation
213,661.77 : 294,944.03 = 133,129.09 : x - Step 2: Convert to fraction form
213,661.77/294,944.03 = 133,129.09/x - Step 3: Cross multiply
213,661.77x = 294,944.03 × 133,129.09 - Step 4: Simplify right side
213,661.77x = 39,265,629,482.08 - Step 5: Solve for x
x = 39,265,629,482.08/213,661.77 - Step 6: Final answer
x = 183,774.71
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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.