Finding the Fourth Proportional to 305,791.74, 457,989.26 and 145,980.09
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Solution
The fourth proportional to 305,791.74, 457,989.26 and 145,980.09 is: 218,636.75
Step by Step Solution
- Step 1: Write the proportion equation
305,791.74 : 457,989.26 = 145,980.09 : x - Step 2: Convert to fraction form
305,791.74/457,989.26 = 145,980.09/x - Step 3: Cross multiply
305,791.74x = 457,989.26 × 145,980.09 - Step 4: Simplify right side
305,791.74x = 66,857,312,663.93 - Step 5: Solve for x
x = 66,857,312,663.93/305,791.74 - Step 6: Final answer
x = 218,636.75
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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.