Finding the Fourth Proportional to 313,038.11, 431,989.53 and 169,796.09
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Solution
The fourth proportional to 313,038.11, 431,989.53 and 169,796.09 is: 234,316.94
Step by Step Solution
- Step 1: Write the proportion equation
313,038.11 : 431,989.53 = 169,796.09 : x - Step 2: Convert to fraction form
313,038.11/431,989.53 = 169,796.09/x - Step 3: Cross multiply
313,038.11x = 431,989.53 × 169,796.09 - Step 4: Simplify right side
313,038.11x = 73,350,133,114.94 - Step 5: Solve for x
x = 73,350,133,114.94/313,038.11 - Step 6: Final answer
x = 234,316.94
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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.