Finding the Fourth Proportional to 398,283.48, 549,631.44 and 219,435.48
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Solution
The fourth proportional to 398,283.48, 549,631.44 and 219,435.48 is: 302,821.09
Step by Step Solution
- Step 1: Write the proportion equation
398,283.48 : 549,631.44 = 219,435.48 : x - Step 2: Convert to fraction form
398,283.48/549,631.44 = 219,435.48/x - Step 3: Cross multiply
398,283.48x = 549,631.44 × 219,435.48 - Step 4: Simplify right side
398,283.48x = 120,608,638,859.49 - Step 5: Solve for x
x = 120,608,638,859.49/398,283.48 - Step 6: Final answer
x = 302,821.09
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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.