Finding the Fourth Proportional to 319,605.60, 479,283.80 and 119,816.97
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Solution
The fourth proportional to 319,605.60, 479,283.80 and 119,816.97 is: 179,678.74
Step by Step Solution
- Step 1: Write the proportion equation
319,605.60 : 479,283.80 = 119,816.97 : x - Step 2: Convert to fraction form
319,605.60/479,283.80 = 119,816.97/x - Step 3: Cross multiply
319,605.60x = 479,283.80 × 119,816.97 - Step 4: Simplify right side
319,605.60x = 57,426,332,686.09 - Step 5: Solve for x
x = 57,426,332,686.09/319,605.60 - Step 6: Final answer
x = 179,678.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.