Finding the Fourth Proportional to 258,809.76, 387,819.36 and 174,257.64
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Solution
The fourth proportional to 258,809.76, 387,819.36 and 174,257.64 is: 261,120.32
Step by Step Solution
- Step 1: Write the proportion equation
258,809.76 : 387,819.36 = 174,257.64 : x - Step 2: Convert to fraction form
258,809.76/387,819.36 = 174,257.64/x - Step 3: Cross multiply
258,809.76x = 387,819.36 × 174,257.64 - Step 4: Simplify right side
258,809.76x = 67,580,486,419.91 - Step 5: Solve for x
x = 67,580,486,419.91/258,809.76 - Step 6: Final answer
x = 261,120.32
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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.