Finding the Fourth Proportional to 292,135.44, 438,214.12 and 81,767.92
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Solution
The fourth proportional to 292,135.44, 438,214.12 and 81,767.92 is: 122,654.95
Step by Step Solution
- Step 1: Write the proportion equation
292,135.44 : 438,214.12 = 81,767.92 : x - Step 2: Convert to fraction form
292,135.44/438,214.12 = 81,767.92/x - Step 3: Cross multiply
292,135.44x = 438,214.12 × 81,767.92 - Step 4: Simplify right side
292,135.44x = 35,831,857,107.03 - Step 5: Solve for x
x = 35,831,857,107.03/292,135.44 - Step 6: Final answer
x = 122,654.95
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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.