Finding the Fourth Proportional to 299,905.98, 413,915.67 and 172,573.02
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Solution
The fourth proportional to 299,905.98, 413,915.67 and 172,573.02 is: 238,176.90
Step by Step Solution
- Step 1: Write the proportion equation
299,905.98 : 413,915.67 = 172,573.02 : x - Step 2: Convert to fraction form
299,905.98/413,915.67 = 172,573.02/x - Step 3: Cross multiply
299,905.98x = 413,915.67 × 172,573.02 - Step 4: Simplify right side
299,905.98x = 71,430,677,197.22 - Step 5: Solve for x
x = 71,430,677,197.22/299,905.98 - Step 6: Final answer
x = 238,176.90
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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.