Finding the Fourth Proportional to 398,800.08, 550,330.68 and 237,571.62
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Solution
The fourth proportional to 398,800.08, 550,330.68 and 237,571.62 is: 327,840.83
Step by Step Solution
- Step 1: Write the proportion equation
398,800.08 : 550,330.68 = 237,571.62 : x - Step 2: Convert to fraction form
398,800.08/550,330.68 = 237,571.62/x - Step 3: Cross multiply
398,800.08x = 550,330.68 × 237,571.62 - Step 4: Simplify right side
398,800.08x = 130,742,951,183.30 - Step 5: Solve for x
x = 130,742,951,183.30/398,800.08 - Step 6: Final answer
x = 327,840.83
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.