Finding the Fourth Proportional to 402,391.52, 555,297.36 and 218,628.44
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Solution
The fourth proportional to 402,391.52, 555,297.36 and 218,628.44 is: 301,705.65
Step by Step Solution
- Step 1: Write the proportion equation
402,391.52 : 555,297.36 = 218,628.44 : x - Step 2: Convert to fraction form
402,391.52/555,297.36 = 218,628.44/x - Step 3: Cross multiply
402,391.52x = 555,297.36 × 218,628.44 - Step 4: Simplify right side
402,391.52x = 121,403,795,552.92 - Step 5: Solve for x
x = 121,403,795,552.92/402,391.52 - Step 6: Final answer
x = 301,705.65
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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.