Finding the Fourth Proportional to 281,157.14, 387,987.21 and 160,337.31
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Solution
The fourth proportional to 281,157.14, 387,987.21 and 160,337.31 is: 221,259.99
Step by Step Solution
- Step 1: Write the proportion equation
281,157.14 : 387,987.21 = 160,337.31 : x - Step 2: Convert to fraction form
281,157.14/387,987.21 = 160,337.31/x - Step 3: Cross multiply
281,157.14x = 387,987.21 × 160,337.31 - Step 4: Simplify right side
281,157.14x = 62,208,825,734.09 - Step 5: Solve for x
x = 62,208,825,734.09/281,157.14 - Step 6: Final answer
x = 221,259.99
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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.