Finding the Fourth Proportional to 639,372.26, 959,058.12 and 190,091.18
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Solution
The fourth proportional to 639,372.26, 959,058.12 and 190,091.18 is: 285,136.69
Step by Step Solution
- Step 1: Write the proportion equation
639,372.26 : 959,058.12 = 190,091.18 : x - Step 2: Convert to fraction form
639,372.26/959,058.12 = 190,091.18/x - Step 3: Cross multiply
639,372.26x = 959,058.12 × 190,091.18 - Step 4: Simplify right side
639,372.26x = 182,308,489,719.38 - Step 5: Solve for x
x = 182,308,489,719.38/639,372.26 - Step 6: Final answer
x = 285,136.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.