Finding the Fourth Proportional to 284,739.60, 392,906.40 and 157,397.84
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Solution
The fourth proportional to 284,739.60, 392,906.40 and 157,397.84 is: 217,190.09
Step by Step Solution
- Step 1: Write the proportion equation
284,739.60 : 392,906.40 = 157,397.84 : x - Step 2: Convert to fraction form
284,739.60/392,906.40 = 157,397.84/x - Step 3: Cross multiply
284,739.60x = 392,906.40 × 157,397.84 - Step 4: Simplify right side
284,739.60x = 61,842,618,682.18 - Step 5: Solve for x
x = 61,842,618,682.18/284,739.60 - Step 6: Final answer
x = 217,190.09
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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.