Finding the Fourth Proportional to 398,220.36, 549,539.82 and 228,481.08
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Solution
The fourth proportional to 398,220.36, 549,539.82 and 228,481.08 is: 315,301.44
Step by Step Solution
- Step 1: Write the proportion equation
398,220.36 : 549,539.82 = 228,481.08 : x - Step 2: Convert to fraction form
398,220.36/549,539.82 = 228,481.08/x - Step 3: Cross multiply
398,220.36x = 549,539.82 × 228,481.08 - Step 4: Simplify right side
398,220.36x = 125,559,451,576.61 - Step 5: Solve for x
x = 125,559,451,576.61/398,220.36 - Step 6: Final answer
x = 315,301.44
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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.