Finding the Fourth Proportional to 230,902.28, 318,698.27 and 135,439.73
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Solution
The fourth proportional to 230,902.28, 318,698.27 and 135,439.73 is: 186,937.99
Step by Step Solution
- Step 1: Write the proportion equation
230,902.28 : 318,698.27 = 135,439.73 : x - Step 2: Convert to fraction form
230,902.28/318,698.27 = 135,439.73/x - Step 3: Cross multiply
230,902.28x = 318,698.27 × 135,439.73 - Step 4: Simplify right side
230,902.28x = 43,164,407,640.27 - Step 5: Solve for x
x = 43,164,407,640.27/230,902.28 - Step 6: Final answer
x = 186,937.99
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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.