Finding the Fourth Proportional to 395,858.75, 546,319.64 and 217,045.31
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Solution
The fourth proportional to 395,858.75, 546,319.64 and 217,045.31 is: 299,541.48
Step by Step Solution
- Step 1: Write the proportion equation
395,858.75 : 546,319.64 = 217,045.31 : x - Step 2: Convert to fraction form
395,858.75/546,319.64 = 217,045.31/x - Step 3: Cross multiply
395,858.75x = 546,319.64 × 217,045.31 - Step 4: Simplify right side
395,858.75x = 118,576,114,537.66 - Step 5: Solve for x
x = 118,576,114,537.66/395,858.75 - Step 6: Final answer
x = 299,541.48
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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.