Finding the Fourth Proportional to 281,565.12, 388,555.99 and 154,241.62
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Solution
The fourth proportional to 281,565.12, 388,555.99 and 154,241.62 is: 212,851.31
Step by Step Solution
- Step 1: Write the proportion equation
281,565.12 : 388,555.99 = 154,241.62 : x - Step 2: Convert to fraction form
281,565.12/388,555.99 = 154,241.62/x - Step 3: Cross multiply
281,565.12x = 388,555.99 × 154,241.62 - Step 4: Simplify right side
281,565.12x = 59,931,505,358.30 - Step 5: Solve for x
x = 59,931,505,358.30/281,565.12 - Step 6: Final answer
x = 212,851.31
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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.