Finding the Fourth Proportional to 258,176.21, 386,987.43 and 124,873.09
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Solution
The fourth proportional to 258,176.21, 386,987.43 and 124,873.09 is: 187,175.71
Step by Step Solution
- Step 1: Write the proportion equation
258,176.21 : 386,987.43 = 124,873.09 : x - Step 2: Convert to fraction form
258,176.21/386,987.43 = 124,873.09/x - Step 3: Cross multiply
258,176.21x = 386,987.43 × 124,873.09 - Step 4: Simplify right side
258,176.21x = 48,324,315,207.79 - Step 5: Solve for x
x = 48,324,315,207.79/258,176.21 - Step 6: Final answer
x = 187,175.71
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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.