Finding the Fourth Proportional to 395,858.25, 546,318.95 and 217,044.81
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Solution
The fourth proportional to 395,858.25, 546,318.95 and 217,044.81 is: 299,540.79
Step by Step Solution
- Step 1: Write the proportion equation
395,858.25 : 546,318.95 = 217,044.81 : x - Step 2: Convert to fraction form
395,858.25/546,318.95 = 217,044.81/x - Step 3: Cross multiply
395,858.25x = 546,318.95 × 217,044.81 - Step 4: Simplify right side
395,858.25x = 118,575,691,616.93 - Step 5: Solve for x
x = 118,575,691,616.93/395,858.25 - Step 6: Final answer
x = 299,540.79
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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.