Finding the Fourth Proportional to 218,322.97, 301,269.58 and 122,811.28
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Solution
The fourth proportional to 218,322.97, 301,269.58 and 122,811.28 is: 169,470.50
Step by Step Solution
- Step 1: Write the proportion equation
218,322.97 : 301,269.58 = 122,811.28 : x - Step 2: Convert to fraction form
218,322.97/301,269.58 = 122,811.28/x - Step 3: Cross multiply
218,322.97x = 301,269.58 × 122,811.28 - Step 4: Simplify right side
218,322.97x = 36,999,302,744.86 - Step 5: Solve for x
x = 36,999,302,744.86/218,322.97 - Step 6: Final answer
x = 169,470.50
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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.