Finding the Fourth Proportional to 281,140.46, 387,979.43 and 153,818.79
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Solution
The fourth proportional to 281,140.46, 387,979.43 and 153,818.79 is: 212,272.99
Step by Step Solution
- Step 1: Write the proportion equation
281,140.46 : 387,979.43 = 153,818.79 : x - Step 2: Convert to fraction form
281,140.46/387,979.43 = 153,818.79/x - Step 3: Cross multiply
281,140.46x = 387,979.43 × 153,818.79 - Step 4: Simplify right side
281,140.46x = 59,678,526,467.49 - Step 5: Solve for x
x = 59,678,526,467.49/281,140.46 - Step 6: Final answer
x = 212,272.99
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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.