Finding the Fourth Proportional to 398,890.08, 598,740.84 and 199,353.60
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Solution
The fourth proportional to 398,890.08, 598,740.84 and 199,353.60 is: 299,233.17
Step by Step Solution
- Step 1: Write the proportion equation
398,890.08 : 598,740.84 = 199,353.60 : x - Step 2: Convert to fraction form
398,890.08/598,740.84 = 199,353.60/x - Step 3: Cross multiply
398,890.08x = 598,740.84 × 199,353.60 - Step 4: Simplify right side
398,890.08x = 119,361,141,921.02 - Step 5: Solve for x
x = 119,361,141,921.02/398,890.08 - Step 6: Final answer
x = 299,233.17
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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.