Finding the Fourth Proportional to 157,357.51, 217,235.47 and 122,828.11
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Solution
The fourth proportional to 157,357.51, 217,235.47 and 122,828.11 is: 169,566.88
Step by Step Solution
- Step 1: Write the proportion equation
157,357.51 : 217,235.47 = 122,828.11 : x - Step 2: Convert to fraction form
157,357.51/217,235.47 = 122,828.11/x - Step 3: Cross multiply
157,357.51x = 217,235.47 × 122,828.11 - Step 4: Simplify right side
157,357.51x = 26,682,622,205.06 - Step 5: Solve for x
x = 26,682,622,205.06/157,357.51 - Step 6: Final answer
x = 169,566.88
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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.