Finding the Fourth Proportional to 351,791.80, 527,743.74 and 127,129.49
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Solution
The fourth proportional to 351,791.80, 527,743.74 and 127,129.49 is: 190,714.49
Step by Step Solution
- Step 1: Write the proportion equation
351,791.80 : 527,743.74 = 127,129.49 : x - Step 2: Convert to fraction form
351,791.80/527,743.74 = 127,129.49/x - Step 3: Cross multiply
351,791.80x = 527,743.74 × 127,129.49 - Step 4: Simplify right side
351,791.80x = 67,091,792,516.89 - Step 5: Solve for x
x = 67,091,792,516.89/351,791.80 - Step 6: Final answer
x = 190,714.49
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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.