Finding the Fourth Proportional to 313,725.96, 432,919.08 and 177,762.60
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Solution
The fourth proportional to 313,725.96, 432,919.08 and 177,762.60 is: 245,299.50
Step by Step Solution
- Step 1: Write the proportion equation
313,725.96 : 432,919.08 = 177,762.60 : x - Step 2: Convert to fraction form
313,725.96/432,919.08 = 177,762.60/x - Step 3: Cross multiply
313,725.96x = 432,919.08 × 177,762.60 - Step 4: Simplify right side
313,725.96x = 76,956,821,250.41 - Step 5: Solve for x
x = 76,956,821,250.41/313,725.96 - Step 6: Final answer
x = 245,299.50
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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.