Finding the Fourth Proportional to 231,207.70, 346,811.55 and 178,719.70
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Solution
The fourth proportional to 231,207.70, 346,811.55 and 178,719.70 is: 268,079.55
Step by Step Solution
- Step 1: Write the proportion equation
231,207.70 : 346,811.55 = 178,719.70 : x - Step 2: Convert to fraction form
231,207.70/346,811.55 = 178,719.70/x - Step 3: Cross multiply
231,207.70x = 346,811.55 × 178,719.70 - Step 4: Simplify right side
231,207.70x = 61,982,056,172.54 - Step 5: Solve for x
x = 61,982,056,172.54/231,207.70 - Step 6: Final answer
x = 268,079.55
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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.