Finding the Fourth Proportional to 285,420.40, 393,879.18 and 164,561.02
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Solution
The fourth proportional to 285,420.40, 393,879.18 and 164,561.02 is: 227,093.65
Step by Step Solution
- Step 1: Write the proportion equation
285,420.40 : 393,879.18 = 164,561.02 : x - Step 2: Convert to fraction form
285,420.40/393,879.18 = 164,561.02/x - Step 3: Cross multiply
285,420.40x = 393,879.18 × 164,561.02 - Step 4: Simplify right side
285,420.40x = 64,817,159,617.56 - Step 5: Solve for x
x = 64,817,159,617.56/285,420.40 - Step 6: Final answer
x = 227,093.65
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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.