Finding the Fourth Proportional to 356,370.94, 491,791.90 and 213,130.98
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Solution
The fourth proportional to 356,370.94, 491,791.90 and 213,130.98 is: 294,120.75
Step by Step Solution
- Step 1: Write the proportion equation
356,370.94 : 491,791.90 = 213,130.98 : x - Step 2: Convert to fraction form
356,370.94/491,791.90 = 213,130.98/x - Step 3: Cross multiply
356,370.94x = 491,791.90 × 213,130.98 - Step 4: Simplify right side
356,370.94x = 104,816,089,603.06 - Step 5: Solve for x
x = 104,816,089,603.06/356,370.94 - Step 6: Final answer
x = 294,120.75
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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.