Finding the Fourth Proportional to 292,287.80, 438,431.70 and 105,231.80
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Solution
The fourth proportional to 292,287.80, 438,431.70 and 105,231.80 is: 157,847.70
Step by Step Solution
- Step 1: Write the proportion equation
292,287.80 : 438,431.70 = 105,231.80 : x - Step 2: Convert to fraction form
292,287.80/438,431.70 = 105,231.80/x - Step 3: Cross multiply
292,287.80x = 438,431.70 × 105,231.80 - Step 4: Simplify right side
292,287.80x = 46,136,956,968.06 - Step 5: Solve for x
x = 46,136,956,968.06/292,287.80 - Step 6: Final answer
x = 157,847.70
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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.