Finding the Fourth Proportional to 218,079.30, 326,925.09 and 84,928.80
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Solution
The fourth proportional to 218,079.30, 326,925.09 and 84,928.80 is: 127,317.70
Step by Step Solution
- Step 1: Write the proportion equation
218,079.30 : 326,925.09 = 84,928.80 : x - Step 2: Convert to fraction form
218,079.30/326,925.09 = 84,928.80/x - Step 3: Cross multiply
218,079.30x = 326,925.09 × 84,928.80 - Step 4: Simplify right side
218,079.30x = 27,765,355,583.59 - Step 5: Solve for x
x = 27,765,355,583.59/218,079.30 - Step 6: Final answer
x = 127,317.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.