Finding the Fourth Proportional to 258,748.08, 387,990.92 and 118,386.44
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Solution
The fourth proportional to 258,748.08, 387,990.92 and 118,386.44 is: 177,519.63
Step by Step Solution
- Step 1: Write the proportion equation
258,748.08 : 387,990.92 = 118,386.44 : x - Step 2: Convert to fraction form
258,748.08/387,990.92 = 118,386.44/x - Step 3: Cross multiply
258,748.08x = 387,990.92 × 118,386.44 - Step 4: Simplify right side
258,748.08x = 45,932,863,771.12 - Step 5: Solve for x
x = 45,932,863,771.12/258,748.08 - Step 6: Final answer
x = 177,519.63
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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.