Finding the Fourth Proportional to 278,819.58, 384,765.48 and 151,496.09
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Solution
The fourth proportional to 278,819.58, 384,765.48 and 151,496.09 is: 209,061.59
Step by Step Solution
- Step 1: Write the proportion equation
278,819.58 : 384,765.48 = 151,496.09 : x - Step 2: Convert to fraction form
278,819.58/384,765.48 = 151,496.09/x - Step 3: Cross multiply
278,819.58x = 384,765.48 × 151,496.09 - Step 4: Simplify right side
278,819.58x = 58,290,463,863.15 - Step 5: Solve for x
x = 58,290,463,863.15/278,819.58 - Step 6: Final answer
x = 209,061.59
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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.