Finding the Fourth Proportional to 319,906.28, 441,448.44 and 176,665.07
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Solution
The fourth proportional to 319,906.28, 441,448.44 and 176,665.07 is: 243,785.52
Step by Step Solution
- Step 1: Write the proportion equation
319,906.28 : 441,448.44 = 176,665.07 : x - Step 2: Convert to fraction form
319,906.28/441,448.44 = 176,665.07/x - Step 3: Cross multiply
319,906.28x = 441,448.44 × 176,665.07 - Step 4: Simplify right side
319,906.28x = 77,988,519,553.99 - Step 5: Solve for x
x = 77,988,519,553.99/319,906.28 - Step 6: Final answer
x = 243,785.52
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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.