Finding the Fourth Proportional to 285,904.54, 394,289.99 and 178,484.46
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Solution
The fourth proportional to 285,904.54, 394,289.99 and 178,484.46 is: 246,147.32
Step by Step Solution
- Step 1: Write the proportion equation
285,904.54 : 394,289.99 = 178,484.46 : x - Step 2: Convert to fraction form
285,904.54/394,289.99 = 178,484.46/x - Step 3: Cross multiply
285,904.54x = 394,289.99 × 178,484.46 - Step 4: Simplify right side
285,904.54x = 70,374,635,948.56 - Step 5: Solve for x
x = 70,374,635,948.56/285,904.54 - Step 6: Final answer
x = 246,147.32
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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.