Finding the Fourth Proportional to 397,872.62, 549,058.56 and 216,586.05
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Solution
The fourth proportional to 397,872.62, 549,058.56 and 216,586.05 is: 298,885.67
Step by Step Solution
- Step 1: Write the proportion equation
397,872.62 : 549,058.56 = 216,586.05 : x - Step 2: Convert to fraction form
397,872.62/549,058.56 = 216,586.05/x - Step 3: Cross multiply
397,872.62x = 549,058.56 × 216,586.05 - Step 4: Simplify right side
397,872.62x = 118,918,424,729.09 - Step 5: Solve for x
x = 118,918,424,729.09/397,872.62 - Step 6: Final answer
x = 298,885.67
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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.