Finding the Fourth Proportional to 331,637.16, 457,517.41 and 216,716.31
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Solution
The fourth proportional to 331,637.16, 457,517.41 and 216,716.31 is: 298,975.80
Step by Step Solution
- Step 1: Write the proportion equation
331,637.16 : 457,517.41 = 216,716.31 : x - Step 2: Convert to fraction form
331,637.16/457,517.41 = 216,716.31/x - Step 3: Cross multiply
331,637.16x = 457,517.41 × 216,716.31 - Step 4: Simplify right side
331,637.16x = 99,151,484,855.96 - Step 5: Solve for x
x = 99,151,484,855.96/331,637.16 - Step 6: Final answer
x = 298,975.80
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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.