Finding the Fourth Proportional to 290,863.17, 436,058.97 and 130,821.93
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Solution
The fourth proportional to 290,863.17, 436,058.97 and 130,821.93 is: 196,126.85
Step by Step Solution
- Step 1: Write the proportion equation
290,863.17 : 436,058.97 = 130,821.93 : x - Step 2: Convert to fraction form
290,863.17/436,058.97 = 130,821.93/x - Step 3: Cross multiply
290,863.17x = 436,058.97 × 130,821.93 - Step 4: Simplify right side
290,863.17x = 57,046,076,049.21 - Step 5: Solve for x
x = 57,046,076,049.21/290,863.17 - Step 6: Final answer
x = 196,126.85
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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.