Finding the Fourth Proportional to 316,460.68, 436,716.21 and 173,229.79
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Solution
The fourth proportional to 316,460.68, 436,716.21 and 173,229.79 is: 239,057.37
Step by Step Solution
- Step 1: Write the proportion equation
316,460.68 : 436,716.21 = 173,229.79 : x - Step 2: Convert to fraction form
316,460.68/436,716.21 = 173,229.79/x - Step 3: Cross multiply
316,460.68x = 436,716.21 × 173,229.79 - Step 4: Simplify right side
316,460.68x = 75,652,257,347.90 - Step 5: Solve for x
x = 75,652,257,347.90/316,460.68 - Step 6: Final answer
x = 239,057.37
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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.