Finding the Fourth Proportional to 316,286.15, 436,475.94 and 173,045.75
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Solution
The fourth proportional to 316,286.15, 436,475.94 and 173,045.75 is: 238,803.71
Step by Step Solution
- Step 1: Write the proportion equation
316,286.15 : 436,475.94 = 173,045.75 : x - Step 2: Convert to fraction form
316,286.15/436,475.94 = 173,045.75/x - Step 3: Cross multiply
316,286.15x = 436,475.94 × 173,045.75 - Step 4: Simplify right side
316,286.15x = 75,530,306,394.26 - Step 5: Solve for x
x = 75,530,306,394.26/316,286.15 - Step 6: Final answer
x = 238,803.71
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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.