Finding the Fourth Proportional to 213,490.76, 294,616.70 and 121,610.03
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Solution
The fourth proportional to 213,490.76, 294,616.70 and 121,610.03 is: 167,821.53
Step by Step Solution
- Step 1: Write the proportion equation
213,490.76 : 294,616.70 = 121,610.03 : x - Step 2: Convert to fraction form
213,490.76/294,616.70 = 121,610.03/x - Step 3: Cross multiply
213,490.76x = 294,616.70 × 121,610.03 - Step 4: Simplify right side
213,490.76x = 35,828,345,661.26 - Step 5: Solve for x
x = 35,828,345,661.26/213,490.76 - Step 6: Final answer
x = 167,821.53
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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.