Finding the Fourth Proportional to 258,621.10, 357,121.38 and 190,755.70
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Solution
The fourth proportional to 258,621.10, 357,121.38 and 190,755.70 is: 263,408.28
Step by Step Solution
- Step 1: Write the proportion equation
258,621.10 : 357,121.38 = 190,755.70 : x - Step 2: Convert to fraction form
258,621.10/357,121.38 = 190,755.70/x - Step 3: Cross multiply
258,621.10x = 357,121.38 × 190,755.70 - Step 4: Simplify right side
258,621.10x = 68,122,938,826.87 - Step 5: Solve for x
x = 68,122,938,826.87/258,621.10 - Step 6: Final answer
x = 263,408.28
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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.