Finding the Fourth Proportional to 311,263.54, 429,537.84 and 190,395.96
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Solution
The fourth proportional to 311,263.54, 429,537.84 and 190,395.96 is: 262,742.85
Step by Step Solution
- Step 1: Write the proportion equation
311,263.54 : 429,537.84 = 190,395.96 : x - Step 2: Convert to fraction form
311,263.54/429,537.84 = 190,395.96/x - Step 3: Cross multiply
311,263.54x = 429,537.84 × 190,395.96 - Step 4: Simplify right side
311,263.54x = 81,782,269,403.13 - Step 5: Solve for x
x = 81,782,269,403.13/311,263.54 - Step 6: Final answer
x = 262,742.85
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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.