Finding the Fourth Proportional to 328,699.68, 453,611.56 and 192,831.12
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Solution
The fourth proportional to 328,699.68, 453,611.56 and 192,831.12 is: 266,110.47
Step by Step Solution
- Step 1: Write the proportion equation
328,699.68 : 453,611.56 = 192,831.12 : x - Step 2: Convert to fraction form
328,699.68/453,611.56 = 192,831.12/x - Step 3: Cross multiply
328,699.68x = 453,611.56 × 192,831.12 - Step 4: Simplify right side
328,699.68x = 87,470,425,159.75 - Step 5: Solve for x
x = 87,470,425,159.75/328,699.68 - Step 6: Final answer
x = 266,110.47
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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.