Finding the Fourth Proportional to 395,092.78, 545,228.02 and 213,804.70
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Solution
The fourth proportional to 395,092.78, 545,228.02 and 213,804.70 is: 295,050.48
Step by Step Solution
- Step 1: Write the proportion equation
395,092.78 : 545,228.02 = 213,804.70 : x - Step 2: Convert to fraction form
395,092.78/545,228.02 = 213,804.70/x - Step 3: Cross multiply
395,092.78x = 545,228.02 × 213,804.70 - Step 4: Simplify right side
395,092.78x = 116,572,314,076.25 - Step 5: Solve for x
x = 116,572,314,076.25/395,092.78 - Step 6: Final answer
x = 295,050.48
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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.