Finding the Fourth Proportional to 264,887.20, 397,330.80 and 115,199.20
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Solution
The fourth proportional to 264,887.20, 397,330.80 and 115,199.20 is: 172,798.80
Step by Step Solution
- Step 1: Write the proportion equation
264,887.20 : 397,330.80 = 115,199.20 : x - Step 2: Convert to fraction form
264,887.20/397,330.80 = 115,199.20/x - Step 3: Cross multiply
264,887.20x = 397,330.80 × 115,199.20 - Step 4: Simplify right side
264,887.20x = 45,772,190,295.36 - Step 5: Solve for x
x = 45,772,190,295.36/264,887.20 - Step 6: Final answer
x = 172,798.80
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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.