Finding the Fourth Proportional to 228,660.71, 315,587.76 and 130,544.20
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Solution
The fourth proportional to 228,660.71, 315,587.76 and 130,544.20 is: 180,171.53
Step by Step Solution
- Step 1: Write the proportion equation
228,660.71 : 315,587.76 = 130,544.20 : x - Step 2: Convert to fraction form
228,660.71/315,587.76 = 130,544.20/x - Step 3: Cross multiply
228,660.71x = 315,587.76 × 130,544.20 - Step 4: Simplify right side
228,660.71x = 41,198,150,081.05 - Step 5: Solve for x
x = 41,198,150,081.05/228,660.71 - Step 6: Final answer
x = 180,171.53
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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.