Finding the Fourth Proportional to 281,284.13, 388,175.75 and 153,956.99
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Solution
The fourth proportional to 281,284.13, 388,175.75 and 153,956.99 is: 212,462.64
Step by Step Solution
- Step 1: Write the proportion equation
281,284.13 : 388,175.75 = 153,956.99 : x - Step 2: Convert to fraction form
281,284.13/388,175.75 = 153,956.99/x - Step 3: Cross multiply
281,284.13x = 388,175.75 × 153,956.99 - Step 4: Simplify right side
281,284.13x = 59,762,367,350.33 - Step 5: Solve for x
x = 59,762,367,350.33/281,284.13 - Step 6: Final answer
x = 212,462.64
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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.