Finding the Fourth Proportional to 316,354.21, 436,568.80 and 173,114.27
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Solution
The fourth proportional to 316,354.21, 436,568.80 and 173,114.27 is: 238,897.69
Step by Step Solution
- Step 1: Write the proportion equation
316,354.21 : 436,568.80 = 173,114.27 : x - Step 2: Convert to fraction form
316,354.21/436,568.80 = 173,114.27/x - Step 3: Cross multiply
316,354.21x = 436,568.80 × 173,114.27 - Step 4: Simplify right side
316,354.21x = 75,576,289,116.78 - Step 5: Solve for x
x = 75,576,289,116.78/316,354.21 - Step 6: Final answer
x = 238,897.69
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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.