Finding the Fourth Proportional to 316,363.68, 436,571.28 and 173,114.10
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Solution
The fourth proportional to 316,363.68, 436,571.28 and 173,114.10 is: 238,891.66
Step by Step Solution
- Step 1: Write the proportion equation
316,363.68 : 436,571.28 = 173,114.10 : x - Step 2: Convert to fraction form
316,363.68/436,571.28 = 173,114.10/x - Step 3: Cross multiply
316,363.68x = 436,571.28 × 173,114.10 - Step 4: Simplify right side
316,363.68x = 75,576,644,223.05 - Step 5: Solve for x
x = 75,576,644,223.05/316,363.68 - Step 6: Final answer
x = 238,891.66
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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.