Finding the Fourth Proportional to 178,922.70, 268,416.81 and 73,684.26
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Solution
The fourth proportional to 178,922.70, 268,416.81 and 73,684.26 is: 110,539.88
Step by Step Solution
- Step 1: Write the proportion equation
178,922.70 : 268,416.81 = 73,684.26 : x - Step 2: Convert to fraction form
178,922.70/268,416.81 = 73,684.26/x - Step 3: Cross multiply
178,922.70x = 268,416.81 × 73,684.26 - Step 4: Simplify right side
178,922.70x = 19,778,094,016.41 - Step 5: Solve for x
x = 19,778,094,016.41/178,922.70 - Step 6: Final answer
x = 110,539.88
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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.