Finding the Fourth Proportional to 292,198.21, 438,566.72 and 148,205.09
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Solution
The fourth proportional to 292,198.21, 438,566.72 and 148,205.09 is: 222,444.28
Step by Step Solution
- Step 1: Write the proportion equation
292,198.21 : 438,566.72 = 148,205.09 : x - Step 2: Convert to fraction form
292,198.21/438,566.72 = 148,205.09/x - Step 3: Cross multiply
292,198.21x = 438,566.72 × 148,205.09 - Step 4: Simplify right side
292,198.21x = 64,997,820,564.00 - Step 5: Solve for x
x = 64,997,820,564.00/292,198.21 - Step 6: Final answer
x = 222,444.28
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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.