Finding the Fourth Proportional to 292,717.20, 438,419.70 and 240,229.20
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Solution
The fourth proportional to 292,717.20, 438,419.70 and 240,229.20 is: 359,805.35
Step by Step Solution
- Step 1: Write the proportion equation
292,717.20 : 438,419.70 = 240,229.20 : x - Step 2: Convert to fraction form
292,717.20/438,419.70 = 240,229.20/x - Step 3: Cross multiply
292,717.20x = 438,419.70 × 240,229.20 - Step 4: Simplify right side
292,717.20x = 105,321,213,795.24 - Step 5: Solve for x
x = 105,321,213,795.24/292,717.20 - Step 6: Final answer
x = 359,805.35
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1.5x scale
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.