Finding the Fourth Proportional to 320,344.81, 442,036.24 and 177,107.65
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Solution
The fourth proportional to 320,344.81, 442,036.24 and 177,107.65 is: 244,386.66
Step by Step Solution
- Step 1: Write the proportion equation
320,344.81 : 442,036.24 = 177,107.65 : x - Step 2: Convert to fraction form
320,344.81/442,036.24 = 177,107.65/x - Step 3: Cross multiply
320,344.81x = 442,036.24 × 177,107.65 - Step 4: Simplify right side
320,344.81x = 78,287,999,681.24 - Step 5: Solve for x
x = 78,287,999,681.24/320,344.81 - Step 6: Final answer
x = 244,386.66
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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.