Finding the Fourth Proportional to 239,884.94, 331,070.38 and 139,282.94
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Solution
The fourth proportional to 239,884.94, 331,070.38 and 139,282.94 is: 192,227.39
Step by Step Solution
- Step 1: Write the proportion equation
239,884.94 : 331,070.38 = 139,282.94 : x - Step 2: Convert to fraction form
239,884.94/331,070.38 = 139,282.94/x - Step 3: Cross multiply
239,884.94x = 331,070.38 × 139,282.94 - Step 4: Simplify right side
239,884.94x = 46,112,454,349.23 - Step 5: Solve for x
x = 46,112,454,349.23/239,884.94 - Step 6: Final answer
x = 192,227.39
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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.