Finding the Fourth Proportional to 388,387.04, 582,720.84 and 135,704.72
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Solution
The fourth proportional to 388,387.04, 582,720.84 and 135,704.72 is: 203,606.09
Step by Step Solution
- Step 1: Write the proportion equation
388,387.04 : 582,720.84 = 135,704.72 : x - Step 2: Convert to fraction form
388,387.04/582,720.84 = 135,704.72/x - Step 3: Cross multiply
388,387.04x = 582,720.84 × 135,704.72 - Step 4: Simplify right side
388,387.04x = 79,077,968,430.36 - Step 5: Solve for x
x = 79,077,968,430.36/388,387.04 - Step 6: Final answer
x = 203,606.09
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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.