Finding the Fourth Proportional to 398,289.96, 549,843.28 and 269,906.68
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Solution
The fourth proportional to 398,289.96, 549,843.28 and 269,906.68 is: 372,608.88
Step by Step Solution
- Step 1: Write the proportion equation
398,289.96 : 549,843.28 = 269,906.68 : x - Step 2: Convert to fraction form
398,289.96/549,843.28 = 269,906.68/x - Step 3: Cross multiply
398,289.96x = 549,843.28 × 269,906.68 - Step 4: Simplify right side
398,289.96x = 148,406,374,225.11 - Step 5: Solve for x
x = 148,406,374,225.11/398,289.96 - Step 6: Final answer
x = 372,608.88
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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.