Finding the Fourth Proportional to 292,483.85, 438,750.61 and 82,121.79
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Solution
The fourth proportional to 292,483.85, 438,750.61 and 82,121.79 is: 123,189.66
Step by Step Solution
- Step 1: Write the proportion equation
292,483.85 : 438,750.61 = 82,121.79 : x - Step 2: Convert to fraction form
292,483.85/438,750.61 = 82,121.79/x - Step 3: Cross multiply
292,483.85x = 438,750.61 × 82,121.79 - Step 4: Simplify right side
292,483.85x = 36,030,985,456.79 - Step 5: Solve for x
x = 36,030,985,456.79/292,483.85 - Step 6: Final answer
x = 123,189.66
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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.