Finding the Fourth Proportional to 225,768.88, 311,328.48 and 157,761.08
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Solution
The fourth proportional to 225,768.88, 311,328.48 and 157,761.08 is: 217,547.77
Step by Step Solution
- Step 1: Write the proportion equation
225,768.88 : 311,328.48 = 157,761.08 : x - Step 2: Convert to fraction form
225,768.88/311,328.48 = 157,761.08/x - Step 3: Cross multiply
225,768.88x = 311,328.48 × 157,761.08 - Step 4: Simplify right side
225,768.88x = 49,115,515,682.92 - Step 5: Solve for x
x = 49,115,515,682.92/225,768.88 - Step 6: Final answer
x = 217,547.77
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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.