Finding the Fourth Proportional to 212,106.78, 317,467.86 and 155,932.02
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Solution
The fourth proportional to 212,106.78, 317,467.86 and 155,932.02 is: 233,389.07
Step by Step Solution
- Step 1: Write the proportion equation
212,106.78 : 317,467.86 = 155,932.02 : x - Step 2: Convert to fraction form
212,106.78/317,467.86 = 155,932.02/x - Step 3: Cross multiply
212,106.78x = 317,467.86 × 155,932.02 - Step 4: Simplify right side
212,106.78x = 49,503,404,694.88 - Step 5: Solve for x
x = 49,503,404,694.88/212,106.78 - Step 6: Final answer
x = 233,389.07
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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.