Finding the Fourth Proportional to 403,129.20, 604,110.60 and 178,305.60
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Solution
The fourth proportional to 403,129.20, 604,110.60 and 178,305.60 is: 267,200.45
Step by Step Solution
- Step 1: Write the proportion equation
403,129.20 : 604,110.60 = 178,305.60 : x - Step 2: Convert to fraction form
403,129.20/604,110.60 = 178,305.60/x - Step 3: Cross multiply
403,129.20x = 604,110.60 × 178,305.60 - Step 4: Simplify right side
403,129.20x = 107,716,302,999.36 - Step 5: Solve for x
x = 107,716,302,999.36/403,129.20 - Step 6: Final answer
x = 267,200.45
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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.