Finding the Fourth Proportional to 202,829.76, 279,819.36 and 135,783.36
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Solution
The fourth proportional to 202,829.76, 279,819.36 and 135,783.36 is: 187,323.66
Step by Step Solution
- Step 1: Write the proportion equation
202,829.76 : 279,819.36 = 135,783.36 : x - Step 2: Convert to fraction form
202,829.76/279,819.36 = 135,783.36/x - Step 3: Cross multiply
202,829.76x = 279,819.36 × 135,783.36 - Step 4: Simplify right side
202,829.76x = 37,994,812,893.85 - Step 5: Solve for x
x = 37,994,812,893.85/202,829.76 - Step 6: Final answer
x = 187,323.66
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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.