Finding the Fourth Proportional to 403,416.53, 605,190.47 and 119,135.84
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Solution
The fourth proportional to 403,416.53, 605,190.47 and 119,135.84 is: 178,723.15
Step by Step Solution
- Step 1: Write the proportion equation
403,416.53 : 605,190.47 = 119,135.84 : x - Step 2: Convert to fraction form
403,416.53/605,190.47 = 119,135.84/x - Step 3: Cross multiply
403,416.53x = 605,190.47 × 119,135.84 - Step 4: Simplify right side
403,416.53x = 72,099,875,003.44 - Step 5: Solve for x
x = 72,099,875,003.44/403,416.53 - Step 6: Final answer
x = 178,723.15
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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.