Finding the Fourth Proportional to 395,128.84, 545,277.84 and 213,842.08
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Solution
The fourth proportional to 395,128.84, 545,277.84 and 213,842.08 is: 295,102.09
Step by Step Solution
- Step 1: Write the proportion equation
395,128.84 : 545,277.84 = 213,842.08 : x - Step 2: Convert to fraction form
395,128.84/545,277.84 = 213,842.08/x - Step 3: Cross multiply
395,128.84x = 545,277.84 × 213,842.08 - Step 4: Simplify right side
395,128.84x = 116,603,343,687.91 - Step 5: Solve for x
x = 116,603,343,687.91/395,128.84 - Step 6: Final answer
x = 295,102.09
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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.