Finding the Fourth Proportional to 331,456.24, 497,242.80 and 121,387.60
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Solution
The fourth proportional to 331,456.24, 497,242.80 and 121,387.60 is: 182,102.80
Step by Step Solution
- Step 1: Write the proportion equation
331,456.24 : 497,242.80 = 121,387.60 : x - Step 2: Convert to fraction form
331,456.24/497,242.80 = 121,387.60/x - Step 3: Cross multiply
331,456.24x = 497,242.80 × 121,387.60 - Step 4: Simplify right side
331,456.24x = 60,359,110,109.28 - Step 5: Solve for x
x = 60,359,110,109.28/331,456.24 - Step 6: Final answer
x = 182,102.80
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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.