Finding the Fourth Proportional to 397,866.72, 549,304.14 and 276,963.96
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Solution
The fourth proportional to 397,866.72, 549,304.14 and 276,963.96 is: 382,382.95
Step by Step Solution
- Step 1: Write the proportion equation
397,866.72 : 549,304.14 = 276,963.96 : x - Step 2: Convert to fraction form
397,866.72/549,304.14 = 276,963.96/x - Step 3: Cross multiply
397,866.72x = 549,304.14 × 276,963.96 - Step 4: Simplify right side
397,866.72x = 152,137,449,858.79 - Step 5: Solve for x
x = 152,137,449,858.79/397,866.72 - Step 6: Final answer
x = 382,382.95
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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.