Finding the Fourth Proportional to 319,382.19, 440,731.53 and 176,133.69
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Solution
The fourth proportional to 319,382.19, 440,731.53 and 176,133.69 is: 243,055.73
Step by Step Solution
- Step 1: Write the proportion equation
319,382.19 : 440,731.53 = 176,133.69 : x - Step 2: Convert to fraction form
319,382.19/440,731.53 = 176,133.69/x - Step 3: Cross multiply
319,382.19x = 440,731.53 × 176,133.69 - Step 4: Simplify right side
319,382.19x = 77,627,670,678.25 - Step 5: Solve for x
x = 77,627,670,678.25/319,382.19 - Step 6: Final answer
x = 243,055.73
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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.