Finding the Fourth Proportional to 388,245.96, 582,372.18 and 107,785.08
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Solution
The fourth proportional to 388,245.96, 582,372.18 and 107,785.08 is: 161,678.52
Step by Step Solution
- Step 1: Write the proportion equation
388,245.96 : 582,372.18 = 107,785.08 : x - Step 2: Convert to fraction form
388,245.96/582,372.18 = 107,785.08/x - Step 3: Cross multiply
388,245.96x = 582,372.18 × 107,785.08 - Step 4: Simplify right side
388,245.96x = 62,771,032,011.07 - Step 5: Solve for x
x = 62,771,032,011.07/388,245.96 - Step 6: Final answer
x = 161,678.52
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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.