Finding the Fourth Proportional to 258,599.18, 387,899.08 and 71,610.68
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Solution
The fourth proportional to 258,599.18, 387,899.08 and 71,610.68 is: 107,416.11
Step by Step Solution
- Step 1: Write the proportion equation
258,599.18 : 387,899.08 = 71,610.68 : x - Step 2: Convert to fraction form
258,599.18/387,899.08 = 71,610.68/x - Step 3: Cross multiply
258,599.18x = 387,899.08 × 71,610.68 - Step 4: Simplify right side
258,599.18x = 27,777,717,680.90 - Step 5: Solve for x
x = 27,777,717,680.90/258,599.18 - Step 6: Final answer
x = 107,416.11
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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.